Configuring Java JDK Environment variables

1. First install the Java JDK, the installation process can not install the JRE.

2. Configuring the JDK environment variables

2-1. Create a new Java_home variable and add a value

Variable name: Java_home variable Value: C:\jdk1.8.0_131

2-2. Add a Path value

Variable name: Path variable Value: C:\jdk1.8.0_131\bin or%java_home%\bin

2-3. Create a new Class_path variable and add a value

Variable name: Class_path variable value:.; C:\jdk1.8.0_131\lib; C:\jdk1.8.0_131\lib\dt.jar; C:\jdk1.8.0_131\tools.jar or.; %java_home%\lib;%java_home%\lib\dt.jar;%java_home%\tools.jar

3. Code test environment variable If there is a problem

3-1. Create a new Test.java file that reads as follows:

public class test{
public static void Main (string[] args) {
System.out.print ("success\n");
}
}

3-2. Open a new CMD window

1) Input Javac Test.java//No output indicates successful compilation

2) Input Java Test//Output success indicates that there is no problem with the environment variables configured above

　　　　

　　　　

Configuring Java JDK Environment variables