Question

//////// ONLY JAVA ****

5. In a right triangle, the square of the length of one side is equal to the sum of the squares of the lengths of the other two sides. Write a program that prompts the user to enter the lengths of three sides of a triangle and then outputs a message indicating whether the triangle is a right triangle. (Have the user enter the lengths 3, 4, and 5).

//////// ONLY JAVA ****

Answer 1

Java code to the given requirement:

import java.util.*;

public class TriangleChecker

{

public static void main(String[] args)

{

//Scanner class object to read input from keyboard

Scanner in=new Scanner(System.in);

//Prompting the user to enter lengths of 3 sides

System.out.print("Enter length of the first side: ");

int side1=in.nextInt();

System.out.print("Enter length of the second side: ");

int side2=in.nextInt();

System.out.print("Enter length of the third side: ");

int side3=in.nextInt();

//conditions to check

if( (side1*side1)==(side2+side3) )

{

System.out.println("Right Triangle");

}else if((side2*side2)==(side1+side3))

{

System.out.println("Right Triangle");

}else if((side3*side3)==(side1+side2))

{

System.out.println("Right Triangle");

}else

{

System.out.println("Not a Right Triangle");

}

}

}

Test case 1:

Enter length of the first side: 3
Enter length of the second side: 4
Enter length of the third side: 5
Right Triangle

Test case 2:

Enter length of the first side: 10
Enter length of the second side: 11
Enter length of the third side: 12
Not a Right Triangle