Question

Make a java program called Numbers.java with the following methods:

gcd(int,int) - determines the greatest common divisor of the two numbers.
Ex. gcd(210,40) is 10

lcd(int,int) - determines the least common divisor of the two numbers.
Ex. lcd(210,40) is 2

max(int,int) - determines the higher value of the two numbers.
Ex. lcd(210,40) is 210

min(int,int) - determines the lower value of the two numbers.
Ex. lcd(210,40) is 40

sum(int,int) - returns the sum of the two numbers. Ex sum(210,40) is 250

main() - lets the user input two numbers and output the gcd , lc , max , min and sum

Answer 1

import java.util.Scanner;
public class Numbers1 {
    public static int gcd(int a, int b){
        if (b != 0)
            return gcd(b, a%b);
        else
            return a;
    }

    public static int lcd(int a, int b){
        for(int i = 2;i<=a && i<=b; i++){
            if(a%i==0 && b%i==0){
                return i;
            }
        }
        return 1;
    }

    public static int max(int a, int b){
        if(a>b){
            return a;
        }
        else{
            return b;
        }
    }

    public static int min(int a, int b){
        if(a<b){
            return a;
        }
        else{
            return b;
        }
    }

    public static int sum(int a, int b){
        return a+b;
    }
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int x, y;
        System.out.println("Enter an integer: ");
        x = sc.nextInt();
        System.out.println("Enter another integer: ");
        y = sc.nextInt();

        System.out.println("GCD: "+gcd(x,y));
        System.out.println("LCD: "+lcd(x,y));
        System.out.println("MAX: "+max(x,y));
        System.out.println("MIN: "+min(x,y));
        System.out.println("SUM: "+sum(x,y));
    }
}