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:
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:
Java Code Editor:
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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
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