How can the Java runtime configuration in idea be set up?
To configure the Java runtime environment, you need to follow the steps below:
- Install Java Development Kit (JDK).
- Visit the Oracle official website (https://www.oracle.com/java/technologies/javase-jdk11-downloads.html) to download the JDK version that is suitable for your operating system.
- Install JDK and set the JAVA_HOME environment variable. Copy the installation path of JDK to the JAVA_HOME variable, for example, C:\Program Files\Java\jdk-11.0.12.
- Set up the system path:
- Add the bin directory of the JDK to the system path. Add %JAVA_HOME%\bin to the Path under system variables, and save the changes.
- Verify installation:
- Open the command prompt (press the Windows key+R, type cmd, and press Enter).
- If the Java version information is displayed after entering the command “java -version”, it means the installation was successful.
- Write Java code.
- Create a new .java file in any text editor, such as HelloWorld.java, and write Java code.
- Save the file and make sure the file extension is “.java”.
- Compile Java code:
- Open the command prompt and use the cd command to navigate to the directory where the .java file is saved.
- When you type javac HelloWorld.java, it compiles the .java file into a .class file.
- Run a Java program:
- Simply enter the command “java HelloWorld” in the command prompt to run the compiled Java program.
These steps will help you set up and run a Java program. Make sure to correctly install and configure JDK according to the steps above in order to run Java programs smoothly.
