A class Adder has been defined to add any two accepted time. Example: Time A - 6 hours 35 minutes…

import java.util.Scanner;

class Adder
{
    int a[] = new int[2];   // a[0] = hours, a[1] = minutes

    Adder()
    {
        a[0] = 0;
        a[1] = 0;
    }

    void readtime()
    {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter hours: ");
        a[0] = sc.nextInt();
        System.out.print("Enter minutes: ");
        a[1] = sc.nextInt();
    }

    void addtime(Adder X, Adder Y)
    {
        a[1] = X.a[1] + Y.a[1];
        a[0] = X.a[0] + Y.a[0] + a[1] / 60;   // carry of minutes goes to hours
        a[1] = a[1] % 60;
    }

    void disptime()
    {
        System.out.println("hours = " + a[0] + " and minutes = " + a[1]);
    }

    public static void main(String args[])
    {
        Adder A = new Adder();
        Adder B = new Adder();
        Adder C = new Adder();
        System.out.println("Enter Time A:");
        A.readtime();
        System.out.println("Enter Time B:");
        B.readtime();
        C.addtime(A, B);
        System.out.println("Sum of the two times:");
        C.disptime();
    }
}