Java assignment 05: Write the largest integer

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Write the body of the method getLargest. The method writes the largest number out of three integers. If two or more equal largest integers are passed to the method, the output of the program should be “Enter unique numbers!”.

 

Java assignment 5: Write the largest integer

Level: Normal

import java.util.Scanner;

public class Math
{
  void getLargest(int i, int i2, int i3)
  {
    // add the body of the method here!
  }
  public static void main(String[] args)
  {
    Scanner input = new Scanner(System.in);
    System.out.print("Enter the first nr: ");
    int i = input.nextInt();
    System.out.print("Enter the second nr: ");
    int i2 = input.nextInt();
    System.out.print("Enter the third nr: ");
    int i3 = input.nextInt();
    Math math = new Math();
    math.getLargest(i, i2, i3);
    input.close();
  }
}
/*
In the following example the user enters 34, 55 and 2
Enter the first nr: 34
Enter the second nr: 55
Enter the third nr: 2
55
*/
 Author: Sar Maroof

Answer explanation

The body of the method is written in the following code.

This program asks the user to enter three numbers respectively and then the program calculates the largest number.

import java.util.Scanner;

public class Math
{
  void getLargest(int i, int i2, int i3)
  {
    if(i > i2 && i > i3)
      System.out.println(i);
    else if(i2 > i && i2 > i3)
      System.out.println(i2);
    else if(i3 > i && i3 > i2)
      System.out.println(i3);
    else System.out.println(""
        + "Enter unique numbers!");
  }
  public static void main(String[] args)
  {
    Scanner input = new Scanner(System.in);
    System.out.print("Enter the first nr: ");
    int i = input.nextInt();
    System.out.print("Enter the second nr: ");
    int i2 = input.nextInt();
    System.out.print("Enter the third nr: ");
    int i3 = input.nextInt();
    Math math = new Math();
    math.getLargest(i, i2, i3);
    input.close();
  }
}

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Sar Maroof is graduated from HBO Amsterdam "higher professional education". He is a professional computer programming teacher, gives master classes and publishes technical articles. His experience with developing software started from 2001 and he has worked as a software developer for several big as well as small companies and later as a freelancer. He is the author of Java quizmaster and Build a Java application in 7 days.

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