how to fill a 2d array in java
int rows = 5, column = 7;
int[][] arr = new int[rows][column];
//2D arrays are row major, so always row first
for (int row = 0; row < arr.length; row++)
{
for (int col = 0; col < arr[row].length; col++)
{
arr[row][col] = 5; //Whatever value you want to set them to
}
}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. Kumarhow to initialize one dimensional array in java
int[] a; // valid declaration
int b[]; // valid declaration
int[] c; // valid declarationCopyright © 2021 Codeinu
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