How to Use Boolean Expressions in Java
A Java boolean can have one of two values: true or false. In some languages, such as C or C++, integer values can be treated as a boolean, with 0 equal to false and any other value equal to true. Not so in Java. In Java, you can't convert between an integer type and a boolean type. 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 ...
Basic Java Variables
In Java information that can be changed as the program runs is stored in variables. A variable is created with a statement that has the type and the name of the variable, and sometimes the value of the information being stored. More ...
How to Install JDK 8 on Windows and Get Started with Java Programming
Java is one of the most popular programming languages in use, particularly for client-server web applications, with nine million developers, and more than three billion mobile phones run Java. All you need to learn to program Java is the free JDK (Java Development Kit). More ...
Java if else if else Control Statement
Some instructions tell the computer to test a variable and to follow a group of instructions based on the result of that test. The nice thing about an if else if else statement is that you can use as many else if sections as you require. You could have an else if section for every possible condition value. 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 do-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 ...
The Sun One Studio Java IDE
You can develop Java applications by typing code into Windows Notepad and executing them from a DOS prompt. But sooner or later you will want to become a more productive programmer, and that requires use of an Integrated Development Environment (IDE). 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 switch case Control Statement
The if else statement tells the computer to run one set of instructions based on one result of a test, and a different set of instructions based on a different result of the test. But a switch case statement can run a different set of instructions based on any value or expression provided to the switch command. More ...
Passing Arguments to a Java Application
In this article I use a very short example program to demonstrate several basic principles of Java programming; how to pass arguments to a Java application, how to convert a string to an int, and how to use an if structure. More ...
Comparing Two Text Strings in a Java Program
One task performed frequently in a Java program is to compare two strings. To accomplish this you would use the String object's equals() method. This article provides Java code to compare the text in two strings. 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 ...
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 ...
