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

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import java.util.Random;

public class TwoDArray {

public static void main(String[] args) {

// Creation of 2D Array

int matrix[][] = new int[3][3];

// To calculate the number of rows=

int row = matrix.length;

// To calculate the number of Column

int column = matrix[0].length;

Random random = new Random();

// Inserting Values into the 2D array.

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

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

// The range of random number is from 0-10 where 10 is exclusive

matrix[i][j] = random.nextInt(10);

}

// Printing the 2D Array

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

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

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

}

System.out.println();

}

// Searching in 2D array;

int key = 5;

boolean found=false;

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

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

if(matrix[i][j]==key) {

System.out.println("key="+key);

System.out.println("Found at cell"+"["+i + ","+j+"]");

found=true;

}

if(!found){

System.out.println(-1);

}

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