Reading Files with Java
Without the ability to read files, your application would be severely limited. In this article I show you; how to use the JfileChooser dialog box to select a file, how to display the contents of the file in your applications window, and how to scroll the Window. 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 ...
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 ...
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 ...
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 ...
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 ...
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 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 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 ...
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 ...
Difference Between JSF, Servlet and JSP
This article provides a brief Overview of JavaServer Faces (JSF), Java ServerPages (JSP), and Java Servlet. 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 ...
Display a Line Break in Text in a Java Program
In computer programming, a collection of letters that make a phrase, sentence, or paragraph, is called a string. Within a string there may be special characters that are used to produce things like tabs, backspaces, and carriage returns. A line break is created using the newline special character. 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 ...
