if, if-else, if-else-if, nested if JAVA by Ravinder Nath Rajotiya - April 13, 20210 Share on Facebook Share Send email Mail Print Print if, if-else, if-else-if, nested if The if statements are the decision structures used in JAVA. It is most useful decision structure for testing for a condition and branch to the relevant statement in the program. Simple and Poorly written program An efficient programming approach package com.Example; import javax.swing.*; import java.util.Scanner; public class examResult { public static void main(String[] args) { int number; String input; input= JOptionPane.showInputDialog(“Please enter a number”); number = Integer.parseInt(input); if(number == 5) { JOptionPane.showMessageDialog(null, “The number is exactly equal to 5”); } if(number >5) { JOptionPane.showMessageDialog(null, “The number is > 5”); } if(number > 10) { JOptionPane.showMessageDialog(null, “The number is > 10”); } if(number >5) { JOptionPane.showMessageDialog(null, “The number is ); } } } package com.Example; import javax.swing.*; import java.util.Scanner; public class examResult { public static void main(String[] args) { int number; Scanner in =new Scanner(System.in); System.out.println(“Enter a number”); number=in.nextInt(); if(number ==5) { JOptionPane.showMessageDialog(null, “The number is exactly equal to 5”); } else if(number >10) { JOptionPane.showMessageDialog(null, “The number is > 10″”); } else if (number >5) { JOptionPane.showMessageDialog(null, “Yhe number is > 5”); } else { JOptionPane.showMessageDialog(null, “he number is ); } } } Example-2: A program to input the markss of a students and evaluate whether the students failed, is eligible for re-assessment, distinction, or passed. package com.Example; import javax.swing.*; public class examResult { public static void main(String[] args) { int number; String input; input= JOptionPane.showInputDialog(“Please enter a number”); number = Integer.parseInt(input); if(number <50 && number >=45) { JOptionPane.showMessageDialog(null, “You can give reassessment”); } else if(number <45) { JOptionPane.showMessageDialog(null, “you failed”); } else { if(number >= 75) { JOptionPane.showMessageDialog(null, “you passed with distinction”); } else { JOptionPane.showMessageDialog(null, “You Passed”); } } } Share on Facebook Share Send email Mail Print Print