Question

Understanding if-elseStatements

Summary

In this lab, you will complete a prewritten Java program that computes the largest and smallest of three integer values. The three values are –50, 53, and 78.

Instructions

1. Two variables named largest and smallest are declared for you. Use these variables to store the largest and smallest of the three integer values. You must decide what other variables you will need and initialize them if appropriate.
2. Write the rest of the program using assignment statements, if statements, or if-else statements as appropriate. There are comments in the code that tell you where you should write your statements. The output statement is written for you.
3. Execute the program. Your output should be:

The largest value is 78

The smallest value is −50

Grading

When you have completed your program, click the Submit button to record your score.

// LargeSmall.java - This program calculates the largest and smallest of three integer values.

public class LargeSmall

{

public static void main(String args[])

{

// This is the work done in the housekeeping() method

// Declare and initialize variables here.

int largest; // Largest of the three values.

int smallest; // Smallest of the three values.

// This is the work done in the detailLoop() method

//Write assignment, if, or if else statements here as appropriate.

// This is the work done in the endOfJob() method

// Output largest and smallest number.

System.out.println("The largest value is " + largest);

System.out.println("The smallest value is " + smallest);

}

}

Answer 1

import java.util.Scanner;

public class LargeSmall {
    public static void main(String args[]) {
        // This is the work done in the housekeeping() method
        // Declare and initialize variables here.
        Scanner in = new Scanner(System.in);
        int n1, n2, n3;
        int largest; // Largest of the three values.
        int smallest; // Smallest of the three values.
        // This is the work done in the detailLoop() method
        System.out.print("Enter three integers: ");
        n1 = in.nextInt();
        n2 = in.nextInt();
        n3 = in.nextInt();
        largest = n1;
        if (n2 > largest) largest = n2;
        if (n3 > largest) largest = n3;

        smallest = n1;
        if (n2 < smallest) smallest = n2;
        if (n3 < smallest) smallest = n3;
        // This is the work done in the endOfJob() method
        // Output largest and smallest number.
        System.out.println("The largest value is " + largest);
        System.out.println("The smallest value is " + smallest);
    }
}