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Articles by AmitDiwan
Page 615 of 840
Retrieving Elements from Collection in Java- Iterator
Following is an example to retrieve elements −Exampleimport java.util.*; public class Demo { public static void main(String args[]) { HashSet my_hs = new HashSet() ; my_hs.add("Joe"); my_hs.add ("Rob"); Iterator my_it = my_hs.iterator(); System.out.println("The elements are : "); while (my_it.hasNext()) System.out.println(my_it.next()); } }OutputThe elements are : Joe RobA class named Demo contains the main function, which defines a HashSet collection. Elements are added to this collection using the ‘add’ function. An iterator is defined, and the elements ...
Read MoreRetrieving Elements from Collection in Java- EnumerationIterator
EnumerationIterator doesn’t have the option of eliminating elements from the collection, whereas an iterator has this facility. An additional disadvantage of using EnumerationIterator is that the name of methods associated with EnumerationIterator is difficult to remember.ExampleFollowing is an example −import java.util.Vector; import java.util.Enumeration; public class Demo { public static void main(String args[]) { Vector day_name = new Vector(); day_name.add("Tuesday"); day_name.add("Thursday"); day_name.add("Saturday"); day_name.add("Sunday"); Enumeration my_days = day_name.elements(); System.out.println("The values are "); while (my_days.hasMoreElements()) ...
Read MoreManipulate two selects on page load with jQuery
Let’s say the following is our first select − John David Bob Mike Sam Carol Following is our second select − David Mike Carol We need to remove the options in the first select, which are similar to options in the second select. For this, use val(). Following is the complete code −Example Document John David Bob Mike Sam Carol David Mike Carol $('#remaining_name > option').each(function (i, el) { var value = $(el).val(); $('#all_present_name > option[value="' + value + '"]').remove(); }); OutputThe output is as follows −
Read MoreHow to print div content using jQuery?
Let’s say we have the following button −On click of the above button, call the function() with on() −$('#buttonId').on('click', function () { displayTheData(); })The above function is using the html() to display the following div − I am inside the div tag... ExampleFollowing is the complete code to print div content − Document I am inside the div tag... I am not inside the div tag... $('#buttonId').on('click', function () { ...
Read MoreHow to populate select list with jQuery?
To populate select list with jQuery, use for loop along with append() and append the options to the already created select.Let’s say we have the following select with options − John David ExampleFollowing is the code to append more number of options using append() − Document John David $(document).ready(function () { var data = [ { "name": "Bob", "customerName": "Bob" }, { "name": "Mike", "customerName": "Mike" } ]; for (var index = 0; index
Read MoreHow to enable the "disabled" attribute using jQuery on button click?
Set the disabled property to true in jQuery −ExampleFollowing is the code − Document $("#change").click(function (buttonEvent) { buttonEvent.preventDefault(); $('#showTxtBoxHide').prop("disabled", false); }); To run the above program, save the file name anyName.html(index.html). Right click on the file and select the option “Open with live server” in VS Code editor −OutputThe output is as follows −The text box property is disabled. To enable, you need to click the button −
Read MoreChange input type value attribute in jQuery
Let’s say the following is our input type with value, “John Smith” −To change, use the attr() method −$('#changeTheName').attr('value', 'Please enter your name.......');You need to use the concept of attr(). Following is the code −Example Document $('#changeTheName').attr('value', 'Please enter your name.......'); To run the above program, save the file name “anyName.html(index.html)” and right click on the file. Select the option “Open with Live Server” in VS Code editor.OutputThis will produce the following output −
Read MoreHow to Implicitly mimic click() in jQuery?
To implicitly mimic click(), you can call a function internally.ExampleFollowing is the code to implicitly mimic click − Document My Name is John Doe demo1Data = document.getElementById('demo1').innerHTML demo1Data = demo1Data.replace('My Name is John Doe', `My Favourite Subject is JavaScript..`) document.getElementById('demo2').innerHTML = demo1Data function replaceData() { document.getElementById('output').innerHTML = 'I live is US.'; } document.getElementById('demo2').querySelector('span').click(); To run the above program, save the file name anyName.html (index.html). Right click on the file and select the ...
Read MoreSlide up and down of a div animates its content - jQuery?
To toggle content, use slideToggle() in JavaScript.ExampleFollowing is the code: − Document .firstDiv { display: none; } .txtBox { display: block; } Press Me to toggle the text box Enter your name: function toogleTheTextBox() { $('#firstDiv').slideToggle(function () { $('#txtBox').focus(); }); } To run the above program, save the file name anyName.html (index.html). Right click on the file and select the option “Open with Live Server” in VS Code editor.OutputThe output is as follows −Press the button “Press Me” to toggle the text box.OutputThe output is as follows −
Read MoreDisplay tooltip text while hovering a textbox in jQuery
For this, use jQuery(selector).toolTip().ExampleFollowing is the code: − Document Write Your Favourite Subject Name: jQuery(".demoTooltip").toolTip() To run the above program, save the file name anyName.html (index.html). Right click on the file and select the option “Open with Live Server” in VS Code editor.OutputThe output is as follows −When you will hover the mouse inside the text box, you will get your tooltip −Your Favourite Subject may be JavaScript...Displayed in the below screenshot as well −
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