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You want to create a program that read a webpage content of a website page. The example below use the URL class to create a connection to the website. You create a new URL object and pass the URL information of a page. After the object created you can open a stream connection using the […]
In this applet example you’ll see how to display a message in browser status bar. To make the example a bit more interesting we’ll display the current time as the message. The time will be updated every on second during the lifetime of the applet. package org.kodejava.applet; import java.applet.Applet; import java.awt.Graphics; import java.text.DateFormat; import java.text.SimpleDateFormat; […]
This example demonstrates you how to remove duplicate elements from an array using the help of java.util.HashSet class. package org.kodejava.util; import java.util.Arrays; import java.util.HashSet; import java.util.List; import java.util.Set; public class ArrayRemoveDuplicate { public static void main(String[] args) { // A string array with duplicate values. String[] data = {"A", "C", "B", "D", "A", "B", "E", […]
package org.kodejava.util; import java.util.*; public class ArrayToSetExample { public static void main(String[] args) { Integer[] numbers = {7, 7, 8, 9, 10, 8, 8, 9, 6, 5, 4}; // To convert an array into a java.util.Set firstly we need to convert the // array into a java.util.List using the Arrays.asList() method. With the // List […]
This example demonstrate you how to use the HashMap class to store values in a key-value structure. In this example we store a map of error codes with their corresponding description. To store a value into the map we use the put(key, value) method and to get it back we use the get(key) method. And […]
Using java.util.Random class we can create random data such as boolean, integer, floats, double. First you’ll need to create an instance of the Random class. This class has some next***() methods that can randomly create the data. package org.kodejava.util; import java.util.Arrays; import java.util.Random; public class RandomDemo { public static void main(String[] args) { Random r […]
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