Downloading and Installing JDK 1.7.0 on Windows

This section provides a tutorial example on how to download and install JDK 1.7.0 (Java SE 7) on a Windows XP system. A simple Java program was entered, compiled, and executed with the new JDK installation.

Downloading and installing JDK 1.7.0 (Java SE 1.7) on a Windows system is easy. Here is what I did on my Windows 7 system:

To test the installation, open a command window to try the java command. If you are getting the following output, your installation was ok:

C:\>"\Program Files\java\jdk1.7.0_45\bin\java" -version
java version "1.7.0_45"
Java(TM) SE Runtime Environment (build 1.7.0_45-b18)
Java HotSpot(TM) Client VM (build 24.45-b08, mixed mode, sharing)

Once JDK is installed, you can try to use it to compile and execute a simple Java program:

1. Use Notepad to enter the following Java program into a file called

class Hello {
   public static void main(String[] a) {
      System.out.println("Hello world!"); 	

2. Then compile this program in a command window with the javac command:

C:\>"\Program Files\Java\jdk1.7.0_45\bin\javac"

3. To execute the program, use the java command:

C:\>"\Program Files\Java\jdk1.7.0_45\bin\java" Hello
Hello world!

Congratulations, you have successfully entered, compiled and executed your first Java program with JDK 1.7.0.

Last update: 2014.

Table of Contents

 About This Book

 Downloading and Installing JDK 1.8.0 on Windows

Downloading and Installing JDK 1.7.0 on Windows

 java.lang.Runtime Class - The JVM Instance

 java.lang.System Class - The Operating System

 ClassLoader Class - Class Loaders

 Class Class - Class Reflections

 Sun's JVM - Java HotSpot VM

 JRockit JVM 28.2.7 by Oracle Corporation

 JVM Runtime Data Areas

 Memory Management and Garbage Collectors

 Garbage Collection Tests

 JVM Stack, Frame and Stack Overflow

 Thread Testing Program and Result

 CPU Impact of Multi-Thread Applications

 I/O Impact of Multi-Thread Applications

 CDS (Class Data Sharing)

 Micro Benchmark Runner and JVM Options

 Micro Benchmark Tests on "int" Operations

 Micro Benchmark Tests on "long" Operations

 Micro Benchmark Tests in JIT Compilation Mode

 Micro Benchmark Tests on "float" and "double" Operations

 Outdated Tutorials


 PDF Printing Version