Please note, this is a STATIC archive of website www.w3resource.com from 19 Jul 2022, cach3.com does not collect or store any user information, there is no "phishing" involved.
w3resource

Java Exercises: Check whether Java is installed on your computer

Java Basic: Exercise-31 with Solution

Write a Java program to check whether Java is installed on your computer.

Pictorial Presentation:

Java: Check whether Java is installed on your computer

Sample Solution:

Java Code:

public class Exercise31 {
public static void main(String[] args) {
    System.out.println("\nJava Version: "+System.getProperty("java.version"));
    System.out.println("Java Runtime Version: "+System.getProperty("java.runtime.version"));
    System.out.println("Java Home: "+System.getProperty("java.home"));
    System.out.println("Java Vendor: "+System.getProperty("java.vendor"));
    System.out.println("Java Vendor URL: "+System.getProperty("java.vendor.url"));
    System.out.println("Java Class Path: "+System.getProperty("java.class.path")+"\n");
 }
}

Sample Output:

Java Version: 1.8.0_71                                                                                        
Java Runtime Version: 1.8.0_71-b15                                                                            
Java Home: /opt/jdk/jdk1.8.0_71/jre                                                                           
Java Vendor: Oracle Corporation                                                                               
Java Vendor URL: https://java.oracle.com/                                                                      
Java Class Path: .

Flowchart:

Flowchart: Java exercises: Check whether Java is installed on your computer

Java Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a Java program to convert a hexadecimal to a octal number.
Next: Write a Java program to compare two numbers.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Java: Tips of the Day

How to sort an ArrayList?

Collections.sort(testList);
Collections.reverse(testList);

That will do what you want. Remember to import Collections though!

Ref: https://bit.ly/32urdSe