Java_Learning/19_2D_Array/Question.java at main · TORRYNN/Java_Learning · GitHub

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public class Question {

public static int Count(int[][] arr, int key) {

int count = 0;

// Loop through each row

for (int[] row : arr) {

// Loop through each element in the row

for (int element : row) {

// If the element matches the key, increment the count

if (element == key) {

count++;

}

return count;

}

// Print out the sum of the numbers in the second row of the "nums" array;

public static int sum(int mat[][]){

int sum=0;

for(int i=0; i<mat.length; i++){

sum+=mat[1][i];

}

return sum;

}

public static void main(String[] args) {

int[][] array = { { 4, 7, 8 }, { 8, 8, 7 } };

System.out.println(Count(array, 7)); // Output should be 2

int[][] nums = { {1,4,9},{11,4,3},{2,2,3} };

System.out.println("Sum "+sum(nums));

}

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