How to install jdk in java

JDK is the core of the entire Java, including a Java runtime environment, Java tools and basic Java class libraries. JDK is a development kit provided by Sun for free to software engineers to develop Java applications. So how to install jdk?

1. First download jdk 32-bit or 64-bit according to the computer type.

2. After downloading, double-click to install directly. You can click "Change" to install the JDK to the path you specify, or you can choose the default path and click "Next" directly.

3. During the installation process, the interface for installing jre will appear. Still select the default path and directly "Next" to continue the installation.

4. The button on the final installation end interface is "Continue". Click to enter the setting interface of JavaFxSDK. Just click Cancel and the JDK installation is completed.

5. After installation, right-click "My Computer" - "Properties" and select "Advanced System Settings" in the pop-up dialog box.

6. In the pop-up dialog box, select "Environment Variables" under the "Advanced" tab.

7. In the pop-up dialog box, click the "New" button under "System Variables", fill in the variable name JAVA_HOME in the pop-up dialog box, and the variable value: C:Program FilesJavajdk1.7.0_04.

8. Create the system variable classpath in the same way. The variable name is classpath and the variable value is %JAVA_HOME%libdt.jar; %JAVA_HOME%lib ools.jar;

9. Also Add the following variable value at the end of the variable value of the existing system variable path: %JAVA_HOME%in; remember not to forget the semicolon in front, and do not delete the original content in front. After filling in, click OK.

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