Java: Find the greatest of three numbers

Last update on December 21 2024 09:57:12 (UTC/GMT +8 hours)

Find Greatest Among Three Numbers

Write a Java program that takes three numbers from the user and prints the greatest number.

Test Data
Input the 1st number: 25
Input the 2nd number: 78
Input the 3rd number: 87

Pictorial Presentation:

Sample Solution:

Java Code:

import java.util.Scanner;
public class Exercise3 {

    
  public static void main(String[] args) {
  Scanner in = new Scanner(System.in);
   
  System.out.print("Input the 1st number: ");
  int num1 = in.nextInt();
   
  System.out.print("Input the 2nd number: ");
  int num2 = in.nextInt();
   
  System.out.print("Input the 3rd number: ");
  int num3 = in.nextInt();
   
   
  if (num1 > num2)
   if (num1 > num3)
    System.out.println("The greatest: " + num1);
   
  if (num2 > num1)
   if (num2 > num3)
    System.out.println("The greatest: " + num2);
   
  if (num3 > num1)
   if (num3 > num2)
    System.out.println("The greatest: " + num3);
 }
}

Sample Output:

Input the 1st number: 25                                                                                      
Input the 2nd number: 78                                                                                      
Input the 3rd number: 87                                                                                      
The greatest: 87

Flowchart:

Java Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a Java program to solve quadratic equations (use if, else if and else).
Next: Write a Java program that reads a floating-point number and prints specified format.