Overload.java

// Write a Comparator Class with the following 3 overloaded compare methods:

// boolean compare(int a, int b): Return true if int a =int b, otherwise return false.
// boolean compare(string a, string b): Return true if string a=string b, otherwise return false.
// boolean compare(int[] a, int[] b): Return true if both of the following conditions hold true:
// Arrays a and b are of equal length.
// For each index i (where 0<= i <= |a|, |b|), a[i] = b[i].
// Otherwise, return false.

//SOLUTION:

import java.io.*;
import java.util.*;

class Comparator{
	public boolean compare(String s1, String s2){
		if(Objects.equals(s1, s2))
			return true;
		else 
			return false;
	}
	public boolean compare(int num1,int num2) {
		if (num1 == num2)
			return true;
		else
			return false;
	}
	public boolean compare(int array1[],int array2[]) {
			Object[] objArray1 = {array1};
		    Object[] objArray2 = {array2};
        if (Arrays.deepEquals(objArray1,objArray2)) 
        	return true; 
        else
        	return false;
	}
}
class Solution {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        Comparator comp = new Comparator();
        
        int testCases = Integer.parseInt(scan.nextLine());
        while(testCases-- > 0){
            int condition = Integer.parseInt(scan.nextLine());
            switch(condition){
                case 1:
                    String s1=scan.nextLine().trim();
                    String s2=scan.nextLine().trim();
                    
                    System.out.println( (comp.compare(s1,s2)) ? "Same" : "Different" );
                    break;
                case 2:
                    int num1 = scan.nextInt();
                    int num2 = scan.nextInt();
                    
                    System.out.println( (comp.compare(num1,num2)) ? "Same" : "Different");
                    if(scan.hasNext()){ // avoid exception if this last test case
                        scan.nextLine(); // eat space until next line
                    }
                    break;
                case 3:
                    // create and fill arrays
                    int[] array1 = new int[scan.nextInt()];
                    int[] array2 = new int[scan.nextInt()];
                    for(int i = 0; i < array1.length; i++){
                        array1[i] = scan.nextInt();
                    }
                    for(int i = 0; i < array2.length; i++){
                        array2[i] = scan.nextInt();
                    }
                    
                    System.out.println( comp.compare(array1, array2) ? "Same" : "Different");
                    if(scan.hasNext()){ // avoid exception if this last test case
                        scan.nextLine(); // eat space until next line
                    }
                    break;
                default:
                    System.err.println("Invalid input.");
            }// end switch
        }// end while
        scan.close();
    }
}