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Program39.java

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import java.util.Scanner;

public class Program39 {

// 2D arrays program (2)[take a matrix as input from user.search for a given number x and print the indeces at which it occurs .]

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

int row = sc.nextInt();

int col = sc.nextInt();

int numbers[][] = new int[row][col];//array declared without initialization

for (int i = 0; i < row; i++) {

for (int j = 0; j < col; j++) {

numbers[i][j] = sc.nextInt();

}

}

for (int i = 0; i < row; i++) {

for (int j = 0; j < col; j++) {

System.out.print(numbers[i][j] + " ");

}

System.out.println();

}

int x = sc.nextInt();

// number to be searched

for (int i = 0; i < row; i++) {

for (int j = 0; j < col; j++) {

if (numbers[i][j] == x) {

System.out.println("Number found at index: (" + i + "," + j + ")");

}

}

}

}

}