Program to find the largest of three numbers in Java

WAP to find the largest of three numbers in Java

Logical Steps:

To find the largest of three numbers, follow these steps:
1. Take three numbers.
2. Compare the first number with the second and third numbers using conditional statements.
3. Use nested if-else statements to determine which number is the largest:
  - If the first number is greater than both the second and third, it is the largest.
  - Else, check if the second number is greater than the other two; if true, it is the largest.
  - Otherwise, the third number is the largest.
4. Print the largest number as the result.

Program:

Below is the simple program:

public class LargestOfThreeNumbers
{
    public static void main(String[] args)
    {
        int no1=10, no2=20, no3=30;

        // Finding and displaying the largest number
        if (no1>no2 && no1>no3)
        {
            System.out.println("\nThe largest number is : " + no1);
        }
        else if (no2>no1 && no2>no3)
        {
            System.out.println("\nThe largest number is : " + no2);
        }
        else
        {
            System.out.println("\nThe largest number is : " + no3);
        }
    }
}

Output:

The largest number is : 30

Below is the program by taking user input:

import java.util.Scanner;

public class LargestOfThreeNumbers
{
    public static void main(String[] args)
    {
        Scanner scanner = new Scanner(System.in);

        System.out.print("Enter number 1: ");
        int no1 = scanner.nextInt();

        System.out.print("Enter number 2: ");
        int no2 = scanner.nextInt();

        System.out.print("Enter number 3: ");
        int no3 = scanner.nextInt();

        // Finding and displaying the largest number
        if (no1>no2 && no1>no3)
        {
            System.out.println("\nThe largest number is : " + no1);
        }
        else if (no2>no1 && no2>no3)
        {
            System.out.println("\nThe largest number is : " + no2);
        }
        else
        {
            System.out.println("\nThe largest number is : " + no3);
        }

        scanner.close();
    }
}

Output:

Enter number 1: 100
Enter number 2: 200
Enter number 3: 300

The largest number is : 300

Program Explanation:

Import Scanner Class:
- The Scanner class is imported to take user input.
Declare Variables:
- Three integer variables (no1, no2 and no3) are declared to store the user’s input.
Take Input:
- Use scanner.nextInt() to read integer values from the user.
Comparison Logic:
- The if condition checks if no1 is greater than or equal to both no2 and no3. If true, num1 is the largest.
- The else if condition checks if no2 is greater than or equal to both no1 and no3. If true, no2 is the largest.
- If none of the above conditions are true, it means no3 is the largest.
Display the Result:
- The program prints the largest number to the console, informing the user which number is the largest among the three.
Close Scanner:
- The scanner.close() method is used to close the input stream and release resources.

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WAP to find the largest of three numbers in Java

Logical Steps:

Program:

Output:

Output:

Program Explanation:

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