js initialize 2d array
let data = [];
for (let row=0; row<rows; row++) {
data.push(new Array(cols).fill('#'));
};js initialize 2d array
let data = [];
for (let row=0; row<rows; row++) {
data.push(new Array(cols).fill('#'));
};Java 2d array initialization
class TwoDimensionalArray {
public static void main(String[] args) {
String[][] salutation = {
{"Mr. ", "Mrs. ", "Ms. "},
{"Kumar"}
};
// Mr. Kumar
System.out.println(salutation[0][0] + salutation[1][0]);
// Mrs. Kumar
System.out.println(salutation[0][1] + salutation[1][0]);
}
}
The output from this program is:
Mr. Kumar
Mrs. Kumarc program to represent 2d matrix in 1d matrix
#include<stdio.h>
#define n 3
int main()
{
int a[n][n],b[n*n],c[n*n],i,j,k=0,l=0;
printf(“\n Enter elements of 2D array : “);
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
scanf(“%d”,&a[i][j]);
}
}
printf(“\n Given 2D array : \n“);
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
printf(“%d ”,a[i][j]);
}
printf(“\n”);
}
printf(“\n Row wise \n”);
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
b[k]=a[i][j];
k++;
}
}
printf(“\n Column wise \n”);
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
c[l]=a[j][i];
l++;
}
}
}python initialize a 2d array
bar = [SOME EXPRESSION for item in some_iterable]initialize 2d array c++
#include <array>
2 #include <iostream>
3
4 using namespace std;
5
6 //remember const!
7 const int ROWS = 2;
8 const int COLS = 3;
int main(){
array<array<int, COLS>, ROWS> matrix = {
1, 2, 3,
4, 5, 6
};
return 0;
}Copyright © 2021 Codeinu
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