Java Keywords
The Java programming language has 50 keywords. Each keyword has a specific meaning in the language. You can't use a keyword for anything other than its pre-assigned meaning. The following table lists Java's keywords. More ...
How to Create the Most Basic Java Window
A lot of Java programming involves creating command line applications. But I like to get to opening a graphic window as quickly as possible. This is no problem because it's actually very easy to create a basic JFrame window. More ...
Java while Loop
A loop is a block of statements that are repeated. There are three main loop control structures available in Java: for, do and while. This article provides example of while loop code. More ...
Java for Loop
A loop is a block of statements that are repeated. A loop may be repeated a fixed number of times, repeat until some condition is met, or can loop indefinitely while the program is running. There are three main loop control structures available in Java: for, do and while. More ...
Java Byte, Short, Long, and Double Variable Types
In Java, as in other programming languages, information that can be changed as the program runs is stored in variables. A primitive variable type is predefined by the language and is named by a reserved keyword. There are eight primitive data types supported by the Java programming language. More ...
Java if else Control Statement
A computer program is a list of instructions for the computer to follow. The if else statement tells the computer to run on set of instructions based on one result of a test, and a different set of instructions on a different result of the test. More ...
Your First Java Menu
Many times the user of a sotware application performs functions by selecting items from a menu. In this article I give you an overview of the Java event model and how to create a Java program with a simple menu. More ...
Concatenate Strings in a Java Program
Java uses the concatenate (+) operator to paste two or more strings together. This article provides Java code to concatenate the strings "first text " and "second text". More ...
Introduction to Java - A Brief Overview
Java is a broadly useful programming language with various components that make the language appropriate for use on the World Wide Web. There are more than nine million Java programmers and more than three billion cellphones run it. More ...
Display Variable's value in Text in a Java Program
Java uses the concatenate operator (+) to paste two or more strings together. However, you can also use the concatenate operator to display the value of a variable with a String. Java will automatically convert the integer values to Strings for display. More ...
Display Text in a Java Program
In computer programming, a letter or digit is called a character and a collection of letters or digits that make a phrase, sentence, or paragraph, is called a string. Example code to display a string in java is provided in this article. More ...
Java if Comparison Statement
A computer program is a list of instructions for the computer to follow. Some instructions tell the computer to test a variable and to follow a group of instructions based on the result of that test. The most basic conditional test is the if statement. More ...
Display a Backslash in Text in a Java Program
Within a string there may be special characters that are used to produce things like new lines, tabs, backspaces, and carriage returns. A special character is prefixed by a backslash. More ...
Change the Case of Text in a Java Program
If you compare two characters or two strings, Java will say they are different if all the characters are not the same case. To make a comparison without consideration for case, you can first convert all the characters in a string to lower case using the String objects toLowerCase toUpperCase method. More ...
