How to lower java version

How to downgrade Java

Unless you want to have multiple Javas coexist, you should remove the Java you have just installed. ** (Because even if you install the old version, the Java you normally use will be the new version) **

* To use multiple Java properly

If you want to switch as needed, you need to change the environment variables. See below for details How to use multiple Java properly

■ How to delete Java you are using

  1. Select "Control Panel"-> "Programs and Features"
  2. Find Java in the list of programs
  3. Right-click and execute "Uninstall"

This will uninstall the selected Java.

■ How to install the old version of Java (JDK / JRE)

Go to the following and download the required version of the java file To java download page

Since it has the following form, download java suitable for the OS required this time

Windows x86 138.35 MB jdk-7u80-windows-i586.exe Windows x64 140.09 MB jdk-7u80-windows-x64.exe

The "Java Runtime Environment (JRE)" contains only the Java execution environment. The "Java Development Kit (JDK)" includes packages for developers in addition to the JRE.

■ Execute the downloaded file and

After that, if you follow the instructions on the screen, Java installation is complete!

Recommended Posts

How to lower java version
How to install the legacy version [Java]
[Java] How to use Map
[Java] How to use Map
How to uninstall Java 8 (Mac)
Java --How to make JTable
How to use java Optional
How to minimize Java images
How to write java comments
How to use java class
[Java] How to use Optional ②
[Java] How to use removeAll ()
[Java] How to display Wingdings
[Java] How to use string.format
How to use Java Map
How to set Java constants
How to use Java variables
How to check JSF version
How to convert Java radix
[Java] How to implement multithreading
[Java] How to use Optional ①
How to initialize Java array
How to study Java Silver SE 8
How to use Java HttpClient (Get)
Studying Java # 6 (How to write blocks)
[Java] How to update Java on Windows
How to make a Java container
How to disassemble Java class files
How to use Java HttpClient (Post)
[Java] How to use join method
How to learn JAVA in 7 days
[Processing × Java] How to use variables
[Java] How to create a folder
How to decompile java class files
[Java] How to use LinkedHashMap class
[JavaFX] [Java8] How to use GridPane
How to write Java variable declaration
How to use class methods [Java]
[Java] How to use List [ArrayList]
How to use classes in Java?
How to name variables in Java
How to pass Oracle Java Silver
How to turn Iterator Dojo (Java)
java Eclipse How to debug javaScript
[Processing × Java] How to use arrays
How to make a Java array
How to use Java lambda expressions
[Java] How to use Math class
How to find Java prime numbers
How to use Java enum type
How to concatenate strings in java
An unsupported Java version How to get rid of errors
How to check Java installed on Mac
How to make a Java calendar Summary
How to implement date calculation in Java
How to implement Kalman filter in Java
Multilingual Locale in Java How to use Locale
[Java] How to use the File class
How to compile Java with VsCode & Ant
[Java] How to use the hasNext function
[Java] How to compare with equals method