compile and run java programming (V2)

Download Java: The latest version of Java can be downloaded from the official Oracle website: https://www.oracle.com/in/java/technologies/downloads/

• To download the JDK file

• Next, download the JRE file.

• After clicking, another window will appear where you can click to download the JRE file.

• After clicking, another window will appear where you can download the JRE file.

• View the file that has been downloaded:

•  After downloading, please install it on your computer.
• Next, we will see the Java folder created in Drive C:\Program Files\Java

• Example: We have a Java code file named PersonalInfo.java, which has the same name as the class PersonalInfo.

Source Code:

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  // Personalinfo.java
public class Personalinfo {
    public static void main(String[] args) {
        // Print "Information" to the console
        System.out.println("My name: Him Seanghon");
        System.out.println("Occupation: Teacher");
        System.out.println("Department: ICT_PIKT");
        System.out.println("Institute: PIKT");
    }
}

Watch the video:

• Step 1: After writing the code, save the file as PersonalInfo.java in the following location:

            C:\Program Files\Java\jdk-23\bin

•  Step 2: We need to compile it (javac file.java) by executing the following command:

            C:\Program Files\Java\jdk-23\bin>javac PersonalInfo.java

        For (jdk-23), it depends on your installed Java version. After compiling, a file in byte-code format will be created with the same name as the class, having the .class extension — PersonalInfo.class, which is the executable file.

• Step 3: After successful compilation, we need to run the program (java file) to display the output of our code by executing the following command:

        C:\Program Files\Java\jdk-23\bin>java PersonalInfo

Note: When running the program, do not include the .java or .class extension.

Ebook: https://softkhpc.blogspot.com/2025/05/java-programming-ebooks.html