Small Applet

import javax.swing.*;
 
public class HelloJava {
  public static void main( String[] args ) {
    JFrame frame = new JFrame( “Hello Narayan!” );
    JLabel label = new JLabel(“Hello Narayan!”, JLabel.CENTER );
    frame.getContentPane(  ).add( label );
    frame.setSize( 500, 300 );
    frame.setVisible( true );
  }
}

Using Switch

public class Grading {
//attribute
private int marks;
String division;

public Grading(int marks) {
//inputing valueof marks
this.setMarks(marks);

}

//accessor methods
public void setMarks(int sm){
this.marks = sm;
}
public int getMarks(){
return marks;
}
public void setDiv(String div){
this.division = div;
}
public String getDiv(){
return this.division;
}

//now initializing the division
public void test(){
//looping for using switch
for (int x = 1; x<=5; x++){
//switch method
switch(x){
case 1:
[...]