Now we need to use a little trick. I would like to avoid this. 99 with FREE shipping after a coupon code and a REBATE. The submit event occurs when a form is submitted. In onClick check…. This tutorial explains how you can interact with JFrame by using buttons, listeners and text fields. This will be important because our PHP code needs to extract information from this submit button, which is how it determines whether it has been clicked or not. (If you are using eclipse 3. NET Forums Prevent double clicking asp. Button is one of the simplest UI components, that is used to generate events when the user clicks or presses on it. (Spring MVC example1 is here). When you use a Lambda expression, you do not have to explicitly implement the …. The datasource is a simple JavaScript array, provided to the widget using the source-option. for rest of the roles the button should be in active mode only. In fact, one of the first and most annoying uses of javascript was to prohibit right-click (allegedly for copyright enforcement it doesn't work that way, though). With this source code, you can make a login form with java gui and then, when you click at login button, you will redirect to a new frame in java gui, this is very important if you want to make a big project with java. How to Disable a Submit Button on Submit - JavaScript Tutorial Here is the full source from the video: http://helpvideoguru. ASP is executed twice and duplicate entries are inserted into Database. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML. " Like most iOS changes, it didn't take long to get used to double-clicking the Side button. but it's not recommended way since it need much more effort. With PDFill, you can fill and save your editing into a new PDF, just like Adobe Reader. You will see that the XAML markup changes and a Button element is inserted. JavaScript - Disable Button after Click using JavaScript Function In this code snippet we will learn how to disable a button on click event. Add a button to Form1, leaving it with a default name of Button1. PDFill: PDF Form Filler. Now here we set submit button in Java Server Page to call a JavaScript's function validlogin (). Disable or Enable Submit Button on Multiple Text Boxes. By default you can press the submit button more than once in an OAF Page. 2 To enable a disabled button, set the disabled attribute to false, or remove the disabled attribute. If you want to validate the form before submitting, the best event handler would be the onsubmit event of the form. Radio buttons are groups of buttons in which, by convention, only one button at a time can be selected. Also show a status (like 'Submitting …') Disable all submit buttons while the form is submitting. Then submit the form using the js code. With PDFill, you can fill and save your editing into a new PDF, just like Adobe Reader. It saves all the options that you chose, and all of the text you wrote, so that in the event of you losing it all, you can recover it later, just by opening the page again, or by clicking on a button. For Rich Text Fields (i. Now from Form Submission we know, that the user information flow from client level to server level as soon as we click submit button after which the information is further processed. If you're already using JavaScript form validation then the command can instead be added to the script as follows:. Form recipe: Conditionally disabling the Submit button. Due to their core role of enhancing/enabling usability or site processes, disabling cookies may prevent users from using certain websites. The submit button will launch the loopForm JavaScript function and the myForm DOM object is passed over as an argument. Open file index. The common solution is disables the submit button after user clicked on it. User click on the yes/no field, enter a value in the textbox, and then click the. How to write the jsp code. Rather than dealing with this problem server side, eating up your CPU process time, it is much easier and better to deal with this problem client side using JavaScript. The last step in the setup is to click "Verify and Save" button But before that, take a look at the Webhooks documentation for the full details on how implement your script. Here's a quick example of how a simple mywebhook. Click Multiple File Upload from the Submit: dropdown menu. MouseEvent; import javax. Interactivity is what user wants in every application. For instance, if they select "Finance" from the dropdown, I'd like them to be routed to the Finance InfoPath form that I've built into a site page on SharePoint. I'm currently making a mod for Minecraft 1. Here’s some options and guidance of when to use. 2 thousand tutorials and articles to learn from. This is will make securable program. You clicked. We often need to disable submit button in HTML pages to avoid double submission of form data, and in this JavaScript tutorial, we will see couple of ways to do that. This java example shows how to disable a Button using setEnabled method. That is, if the form contains multiple submit buttons, only one string will be not null and all other will be null. T he button we created so far is still in the Button object editor. Enables binding AngularJS expressions to onsubmit events. I have this code to prevent double click:. This kind of operation can come in handy if you want to make sure that a button is only clicked once; or if you want to disable a button while an Ajax request is being carried out. Net PostBack event method directly. Aside: about submit buttons. Everything works except the part where I want to insert the specific name that is populated in the supplier name field. If you couldn't define which group the current button belongs to, you could only have one group of radio buttons on each page. Chances are that if you don’t think that you need Java, you don’t need it. Disable Submit Button To Prevent Multiple Clicks When I was googled to get a solution for disabling a submit button after submission or prevent the user from multple clicks of the submit button, I am not able to find out the nice one. But,The Problem with the application is when i click the Search button simultaneously it replicates the data. So, what could possibly go wrong? Well, what if the user double clicks on the submit button rather than clicking it just the once? The contents of the form will be submitted twice. The following listing is illustrating that. In this case, clicking one button should disable both buttons because there are intended for one operation. Button shanks may be made from a separate piece of the same or a different substance as the button itself, and added to the back of the button, or be carved or moulded directly onto the back of the button, in which latter case the button is referred to by collectors as having a 'self-shank'. In this tutorial you will learn: 1. Below is the code of our HTML form:. Also, the changed settings should not take effect until the user clicks the command button (labeled "OK" for example, or "Proceed to XXX" where "XXX" is the next step in a process). After that you can't scroll up. Multiple Buttons to same action listener: Your instinct is correct. jQuery disable button on click to prevent multiple form submits; Understanding JavaScript Variables; Using Try…Catch in JavaScript; A Modern Reintroduction To AJAX; The Most Indispensable jQuery Form Validation Reference Guide; JavaScript Form Validation : quick and easy! Using the window. But, sometimes that's not enough, especially with the email delivery of alerts coming from a website service. I would like to disable a list of options in a drop-down based on what the user has previously selected. Duplicate processing can include duplicate database records, multiple emails, or different types of errors. box-shadow - Sets a shadow for your submit button. $("#btnSubmit"). If you look above the timeline you see two Icons labelled "Scene 1" and "mybutton". But,The Problem with the application is when i click the Search button simultaneously it replicates the data. In the toolbox the command button has this icon. Java; 139871; HTML/CSS Multiple Choice. In the section, from the generated output of the following program, complete window or frame is created in the ButtonText class that is the main class where the main() method lies. clearTimeout will be called once you click stop button and will cancel the repeated execution. The latest Tweets from Web Buttons (@WebButtons). getParameter() and request. Or to prohibit copy-pasting of passwords, which is the most un-safe "safet. Description. When the form is submitted in the usual manner with a submit button the request is sent using XMLHttpRequest and the result is returned into the of your choice. So, the selection depends on developers choice and application requirements. This java example shows how to disable a Button using setEnabled method. This cold be one option. b) use the identifier as argument to stop or clear or cancel the timeout call. One of the fundamental uses of email is to share photos and other files with friends, family, or colleagues. in the default page by entering as a particular like xx I want to disable a button ""add parameters"" from jsp page to a particular role only. BeginForm(…). , I instead listen for a click on the. When you select one button, all other buttons in the same group are unselected. Click the button below to reveal a row containing some text, an image, and a video. In that article we dynamically added the data on the click of a button but what to do if you want the user to stop it when he clicks a specified number of times? For that we need a Click Counter and using that Click Counter the button will become disabled and the user will not be allowed to click anymore. How to get select box option value on using jQuery; How to get id of an HTML element on hover using jQuery; How JQuery Get Id Of An HTML Element On Click. MaxButtons is a powerful WordPress button, share button and social icon plugin. In the file chooser navigate to any image that is on your system that you want to use. Several methods exist to prevent users from clicking a form's submit button more than once. net page that when a button is clicked, executes a stored procedure in my code behind that looks up data and does an insert of the values selected. To run a snippet, simply import SWT into your Eclipse workspace, create a new Java project that depends on SWT, copy the desired snippet to the clipboard, and paste it into a new snippet class. name-value pair. Radio buttons are always used in multiples; there is no logical sense in having just one radio button on a form, because once you click on it, you can't unclick it. Locate the Button control in the Toolbox panel. To better understand let's create an HTML form. NET MVC form, can the user be given two submit Buttons that do two different things? By Peter Vogel; 11/19/2014. I want to save user data only once into the database when user hit the submit button. Which technique to use? All the techniques discussed above are standard ways of dealing with multiple submit buttons. NET Forums Prevent double clicking asp. 11 What is a trusted site? 1. If you have a group of radio buttons, just bind them all to the same model property. So when the form is submitted - either by clicking on the submit button or pressing Enter in a text input field - the submit button will be disabled to prevent double-clicking. The Share button lets people add a personalized message to links before sharing on their timeline, in groups, or to their friends via a Facebook Message. We will work through the layout and design of a GUI and add a few Buttons and Text Boxes. Submit a Simple HTML Form 2). Now here we set submit button in Java Server Page to call a JavaScript's function validlogin (). When a user enters a value in the textbox, the script will enable (clickable) the submit button, else if the textbox is empty it will again disable the button. You can invoke the controller method by button click using the following code example. I want to write down such a code that , -when user clicks btStart, btStart will be disabled and btStop will be enabled, -when user clicks btStop, btStop will be disabled and btStart will be enabled. Submit buttons send form data to a back-end process or application. To prevent double click, you can record the last time button clicked, and compare it to threshold of desired time. Java Pyramid 6 Example. The JavaScript Confirmation Message Box will be displayed on Button Click using ClientScript. In the file chooser navigate to any image that is on your system that you want to use. Click multiple check boxes to get value on click of the button given above. Suppose on Save button click you are saving data in the tempUser table & on Submit button you are saving data in RegUser table and more over on Cancel button click you are returning to home page. There's no shortage of content at Laracasts. If your list is long, it's a good idea to set a larger size so that multiple options are visible at the same time. But, sometimes that's not enough, especially with the email delivery of alerts coming from a website service. To copy and paste the HTML codes from the HTML chart below into the HTML of your web page, place your mouse pointer over the beginning of the HTML code you would like to copy. Net Submit button, we disable the button using javascript so that user cannot submit it again. In that article we dynamically added the data on the click of a button but what to do if you want the user to stop it when he clicks a specified number of times? For that we need a Click Counter and using that Click Counter the button will become disabled and the user will not be allowed to click anymore. On Thursday, sources confirmed to multiple media outlets that Donald Trump has chosen Oklahoma Attorney General Scott Pruitt to lead the Environmental Protection Agency. Reduce your array by deleting the string you've already assigned. Having problems with a ticket being submitted multiple times? This article will show you how to disable the Submit button after it has been click and change the text label to Submitting, please wait Make a backup copy of your existing index. using the Hidden field solve your issue to prevent multiple click of submit button? if yes please let me know about that. Steps on how to create a Check Box or Radio Button PDF Form Field: Choose Forms Menu > Select Check Box Tool or Radio Button Tool ; or click Check Box Tool or Radio Button Tool in the Forms Toolbar. I don't want to put 2 Submit button. border-radius - Rounds the corner of your submit buttons. Using Multiple Forms. More about customizing your Toolbar can be found in this guide. This action might be getting data from input field, saving or retrieving data to database or performing and displaying calculation result in swing frame. When i enter the Order no and order type and click submit button then it shows the documents for that order no. I would like to avoid this. Related Post: How to disable the Submit button after the 1st click using a One-Line code in JavaScript. Hi, I created a button when i click on button new textbox is created. How To Avoid Multiple Clicks of Your Order Submit Button. Conclusion. Solving the Double Submission Issue. How to avoid double-click-button problem is a tutorial in which author describes about the method to add the code, which is specified in this. Leave selected Allow users to submit this form. Net submit button when it is clicked after PostBack occurs to prevent users double click on the button using JavaScript TAGs: ASP. Screencast is included as well. Actually, there are no buttons!As you know buttons are rendered as native html code and. In all cases, you have just lost all the work that you put into filling in the form. Suppose on Save button click you are saving data in the tempUser table & on Submit button you are saving data in RegUser table and more over on Cancel button click you are returning to home page. The vast majority of form fields are the element, and there are only a handful of form field types — , for example — that are actually a different element. Select the option Collect Name & Email from Recipients To Provide Optimal Tracking. NET server control button, as the K2Button was inherited from this. How to Disable a Submit Button on Submit - JavaScript Tutorial Here is the full source from the video: http://helpvideoguru. Click the FIVR button to go to Turbo FIVR Control. I don't want to use AJAX. Here is the jQuery Code:. The Share button lets people add a personalized message to links before sharing on their timeline, in groups, or to their friends via a Facebook Message. In this small post, we will lean how to disable button on click to prevent multiple form submits in jquery. Using JavaScript to reset or clear a form. JavaScript / Ajax / DHTML Forums on Bytes. Level up your Java™ code. The intension is, user should not be allowed to click the button multiple types when it is being processed. Disabling Java. as opposed to a #. in the default page by entering as a particular like xx I want to disable a button ""add parameters"" from jsp page to a particular role only. To elaborate, when a form has an autocomplete field and the user selects an item from the autocomplete match list and hits enter key, submit_once java script also executes (may be because Drupal makes Submit button as default action). i can load second dropdown box by single select but i cant able to load it by multiselect checkbox options. Post to Multiple Job Boards. Form Handling. There are two types of ways to open a new activity. Typically users will hit the refresh button, double click a single click button or QAs that machine gun click to try to break something. That would : * be times more practical when debugging custom websites, * prevent the costly, and possibly very long, file system recursion (see also #375 though http has some path size limit protection), * possibly save a lot of memory, * allow dynamic access-control. jsFiddle: To Fiddle with the code, click here. To solve the above problem we can disable the submit button after the one click event by using javaScript and jQuery. The most popular manifestation of call to action in web interfaces comes in the form of clickable buttons that when clicked, perform an action (e. AWT Button Change AWT Button Font Example. Is there a way to submit the data in the rows as vectors after they are saved using a submit button?. You can invoke the controller action by Button using click event to your Syncfusion Button control. Use the 'id' of the. Roberta,There are standard keyboard shortcuts to select and deselect. Prime Numbers Java Example. Today's Best Tech Deals. Facebook uses Open Graph (og) tags, and plugins like Yoast SEO automatically adds them to your site to prevent missing thumbnail issue. However, BUTTON is new in HTML 4. com called Custom Toggle Section In Divi. This tip assumes that you have experience building a simple SSRS report and T. To run a snippet, simply import SWT into your Eclipse workspace, create a new Java project that depends on SWT, copy the desired snippet to the clipboard, and paste it into a new snippet class. In InfoPath Designer with your form open, click File. It's probably the first, but I don't think it's specced, and still unchangeable =( so multiple buttons is always dangerous. Disabled HTML forms elements aren't sent along with the post/get values when you submit the form. The element is the fundamental form element for gathering user info through forms. The submit() method submits the form (same as clicking the Submit button). We will work through the layout and design of a GUI and add a few Buttons and Text Boxes. In this quick post I'll show you how to disable click event using jquery, as you have faced this issue while submitting your form data using ajax, User may click multiple times if you haven't. When the form is submitted in the usual manner with a submit button the request is sent using XMLHttpRequest and the result is returned into the of your choice. I have successfully turned it into an interactive pdf but how do i add an email submit button?. A fter adding the button image to the webpage you need to add a few comments to the image tag. Download DM2. Android Onclick Event: How To Handle Button Clicks In this tutorial we will experiment top methods to handle button onclick events in Android by providing examples with code and explanation. Remove button's Click Event. By “lack of plug-ins support,” we mean there is simply no way to activate or enable the Java plug-in with the Edge web browser. I googled "asp. Use some java script that sets the action value in hidden field based on the button click. In Java, you can use Lambda expressions to simplify classes that implement interfaces that have just one method — that is, interfaces that qualify as functional interfaces. How to Reload the Page With JavaScript. By default you can press the submit button more than once in an OAF Page. When you select one button, all other buttons in the same group are unselected. Here's what I am doing. If one is, transfer the value of that radio button to user_input. In the post action all what you need to do is, simply, adding an extra string parameter that's named exactly like the submit buttons' names. You can refer to the following code:. php could look like in PHP. Net button after click to prevent double clicking. The command buttons are usually placed at the bottom of the form and serve to complete the transaction for which the form has been created. By default the submit button remains disabled. Submit buttons send form data to a back-end process or application. Here is the jQuery Code:. So we are left with Button and Image Button to submit the information. 1) If a user attempts to submit a form and gets validation errors, a submit event is never fired for the. on button click I send data to a server – this is done async. Checking for a single or multiple radio buttons. a frame should be close when clicked on the button on a frame. box-shadow - Sets a shadow for your submit button. You can simply remove the onclick event handler by setting its value as null. To disable a device in Device Manager, open Device Manager, expand the Network adapters section, and right-click or tap-and-hold the entry that corresponds to the network adapter to find the Disable option (enabling devices is similar). Have I got to disable Java and/or Plugins from Firefox options to browse safely with NoScript ? 1. In the above fig. You clicked. Multiple Ways to Call Javascript Function from CodeBehind in ASP. jQuery disable button on click to prevent multiple form submits. Instead, change your element to. You can cause an action to occur when a bookmark or link is clicked, or when a page is viewed. If you stop at this point CCleaner will run automatically at the prescribed time but won't actually do any cleaning. Using the Javascript setTimeout() function can be useful for making something happen on a webpage a set time after something happens, such as a button being clicked. How to write the jsp code. In fact, one of the first and most annoying uses of javascript was to prohibit right-click (allegedly for copyright enforcement it doesn't work that way, though). How can I save data from fields across multiple screens to submit as one entry? For example, I can use an Edit Screen to submit a form with 5 fields. To stop streaming, tap in the app that you're streaming from, then tap your iPhone, iPad, or iPod touch from the list. HTML documents represent a media-independent description of interactive content. Doing or Raising Postback using __doPostBack() function from Javascript in Asp. Submit button is a very important component of every OAF page and there often arises a situation where an OA Framework technical personnel need to disable (not hide) OA Framework Submit Button dynamically. The second view shows the button when it has input focus. JFrame Close On Button Click. To prevent browsers which do not support styles from displaying internal styles as When a visitor clicks the submit button on a form, the _____ of each form element is sent. (Refer to Success Criterion 4. Visit the post for more. Disable a button to avoid double clicks Easier to leave things as they are and just throw away the multiple submit requests: on ASPX form with runat="server": According to your description ,for my experience you can create some javascript functions to prevent button from submitting multiple times at client side and also make a judgment. There's no shortage of content at Laracasts. For example, you can use links and bookmarks to jump to different locations in a document, execute commands from a menu, and perform other actions. Level up your Java™ code. I’ll walk you through the steps with pictures. However, when a user clicks the submit button, it calls the save() function and here I have set the value as true. First of all, "var x=" is a variable declaration; it declares a variable ("x" in this case) that will store the result of the confirm box. NET prevent multiple submit server side As for this, I suggest you could also try to use the Enabled property to disable the button. Also, if I click on other browser window and come back to OAF page, the submit button can be clicked again immediately. Also, in my case where I am modifying a copy of NewForm. For example, you can tell Windows whether you write with your right or left hand and choose what the button on the pen does when you click, double-click, or long-press it. php in a plain text editor, such as Notepad. It's probably the first, but I don't think it's specced, and still unchangeable =( so multiple buttons is always dangerous. It also has many different types of fields (columns) such as hyperlinks images checkboxes etc. JavaScript provides an easy way to disable the multiple submission of a form once the form has been submitted. How to Create a Swing GUI in Java. You might put that on the form onsubmit handler, but it's not going to help on the button element (and even putting it on the form onsubmit handler is not ideal). Net,JavaScript is one of the very versatile scripting languages that are used in Web applications. In this tutorial I am going to show, how you can prevent form submission using jQuery. Building an exit, close, or quit button is one of the first steps a programmer needs to learn when developing in C# Visual Studio. Get submit button value. jQuery disable button on click to prevent multiple form submits. we have Save, Submit & Cancel buttons. If your list is long, it's a good idea to set a larger size so that multiple options are visible at the same time. Move your mouse cursor to the grayed out button and click on it to enable it. What if I want to use input type=”submit”, but also have buttons that do other stuff in my form block… will those extra buttons act like Submit buttons? Eg. In InfoPath Designer with your form open, click File. So, I simply looked up the field id (use Browser – right-click View Source) and created:. Click Apply. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML. Want to offer feedback, or share your ideas?. How Do I Add a Client Side Message Box to ASPX Pages? Update: 06/11/2006 Due to a number of requests I received, I have added a VB version of the code example in this article In many applications, it's common practice to use a client side dialog, like a message box, to ask the user for confirmation or display a message. Now here we set submit button in Java Server Page to call a JavaScript's function validlogin (). Adding the multiple attribute to allows the user to select more than one option. jsFiddle: To Fiddle with the code, click here. Kotlin setOnClickListener for Button Android button is a UI element generally used to receive user actions as input. name-value pair. To sign up for Amazon EC2, click the “Sign up for This Web Service” button on the Amazon EC2 detail page. I have covered previously as well like How to perform click operation in Selenium Webdriver but now we are going to talk about something new I mean how to click in Selenium webdriver using JavaScript for an element which is disabled. , I instead listen for a click on the. Hi All, I want to disable the button after it is clicked, then complete the task, then enable the button. How to disable a button in ASP code to prevent the users from clicking twice? Page1: Mainpage. Call to action in web design — and in user experience (UX) in particular — is a term used for elements in a web page that solicit an action from the user. Step 7: Now let's run the application and click on the save button, then it will firethe save action method as, Now click on draft button, it will fire the Draft action method and show the following message, I hope from all the preceding examples we have learned how to use multiple submit buttons on single view in ASP. The submit event occurs when a form is submitted. Using the JavaScript Object Model in a Content Editor Web Part (Kumar Abhishek Verma) Navigate to the Home page and click the Submit button that is now on Content. This then means that the user will be. For instance, if they select "Finance" from the dropdown, I'd like them to be routed to the Finance InfoPath form that I've built into a site page on SharePoint. The next is that we prevent the user from double clicking the save button by disabling the button and changing it's text to say "Processing…" Finally, we only disable the button if the validation succeeds. How to Create a Swing GUI in Java. Best way to prevent a user from clicking the submit button multiple times and thus inserting dupl Jul 26, 2011 01:45 PM | funluckykitty | LINK I have a vb. border-radius - Rounds the corner of your submit buttons. The most concise screencasts for the working developer, updated daily. NET server control button, as the K2Button was inherited from this. Sometimes there is a need to submit a form automatically. Applies to See also. I want to avoid the replication of the data on multiple button click. Net PostBack event method directly. When you select one button, all other buttons in the same group are unselected. Appreciate. Multiple submit buttons in post action. Open Windows Update by swiping in from the right edge of the screen (or, if you're using a mouse, pointing to the lower-right corner of the screen and moving the mouse pointer up), select Settings > Change PC settings > Update and recovery > Windows Update. Action method to invoke the particular action. Adobe PDF form is an electronic-based form, resembling a traditional paper form that can collect data from a user and then send that data via email or the Web. We still haven't dragged it onto our main movie. HTML and JavaScript code for back button in to go previous pages We can show a back button using html code in our pages which can take the browser window to the previous page. Note: The button widget was rewritten in 1. BONUS: This code is also applicable for the standard ASP. To that end this article illustrates four ways of handling multiple submit buttons. Create brilliant web buttons and drop down menus in a few clicks! Thousands of hi-quality icons and pre-made menu templates in Web 2. CheckBox & Radio Button Operations are easy to perform and most of the time the simple ID attributes work fine for both of these. To solve the above problem we can disable the submit button after the one click event by using javaScript and jQuery. Button enhances standard form elements like buttons, inputs and anchors to themeable buttons with appropriate hover and active styles. No, there's no need, the JavaDoc tool parses the Java code and gets the types from there. It can be done with the onClick="_____" attribute, like this: Those are six ways to prevent multiple form submissions. Conclusion. Your idea of putting action listeners on individual buttons is a good one, depending on the application. See how easy it is to disable navigation buttons in newer versions of Storyline! You can prevent users from advancing too quickly through a slide in Storyline 1, using either of the following methods: Disable the built-in Next button until they've met certain conditions, such as clicking all the buttons on the slide or listening to all the. As you can see, the Index. How to get select box option value on using jQuery; How to get id of an HTML element on hover using jQuery; How JQuery Get Id Of An HTML Element On Click. Multiple Buttons to same action listener: Your instinct is correct. The Infopath forms created from a template published to a sharepoint library form can submit multiple rows into a sharepoint list as well as there are other (non-straightforward thanks to MS) methods of submitting multiple items to a list or to multiple lists. Firstly read the full documentation of how to add push notification in any android app How to add push notification in android application from android studio – Android developer (part – 1 Connect. Home / Java Swing / How to Create Push Buttons with JButton.