Matrics.java

import java.util.*;

public class Matrics {

    public static boolean search(int matrix[][], int key){
             for(int i=0; i<matrix.length; i++){
            for(int j=0; j<matrix[0].length; j++){
                if(matrix[i][j] == key){
                    System.out.println("found at cell (" + i +","+ j +")");
                    return true;
                }
            }
        }
        System.out.println("key not found");
        return false;



    }
    public static void main(String [] args){

        int matrix [][] = new int [3][3];
        int n=matrix.length;
        int m= matrix[0].length;
        
        
        Scanner sc = new Scanner(System.in);
        for(int i=0; i<n; i++){
            for(int j=0; j<m; j++){
                matrix[i][j] = sc.nextInt();
            }
        }
    // output
        for(int i=0; i<n; i++){
            for(int j=0; j<m; j++){
                System.out.print(matrix[i][j]+ " ");

            }
            System.out.println();
        }

        search(matrix, 5);
        
    }
}