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Java Programming

Locate Text Within Text in a Java Program
In Java 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. Java uses the String object's .indexOf method to locate one string within another. 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 ...

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 ...

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 ...

Java Operators
Operators are special characters used to manipulate operands. This artice explains arithmetic, relational, bitwise, logical, and assignment Operators, as well the conditional Operator and instanceof Operator. 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 ...

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 ...

Determine the Length of a Text String in a Java Program
Java uses the .length method to return the length, in characters, of the text contained in a String object. In this article is the Java code to determine the length of a text string. More ...

A Comparison Between The Java IDEs: Netbeans and Eclipse
Both NetBeans and Eclipse are open source and cross platform Java IDEs. Eclipse is supported by IBM, whereas NetBeans is supported by Oracle. Each IDE provides several innovative features and tools to simplify and speedup Java application development. 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 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 Ternary Operator Control Statement
The ternary operator (?) is often confusing to beginners. The ternary operator is used to assign one of two values to a variable based on a conditional test. More ...