initialize matrix java code example
Example 1: 2d array java
int[][]arr= new int [filas][columnas];
arr.length=filas;
int[][] a = {
{1, 2, 3},
{4, 5, 6, 9},
{7},
};
System.out.println("Length of row 1: " + a[0].length);
System.out.println("Length of row 2: " + a[1].length);
System.out.println("Length of row 3: " + a[2].length);
}
Example 2: two dimensional array in java example program
String[][][] data = new String[3][4][2];
Example 3: declare matrix in java
int[][] multi = new int[5][];
multi[0] = new int[10];
multi[1] = new int[10];
multi[2] = new int[10];
multi[3] = new int[10];
multi[4] = new int[10];
Example 4: instantiate matrix java
int[][] matrix1 = new int[2][2];
matrix1[0][0] = 1;
matrix1[0][1] = 2;
matrix1[1][0] = 3;
matrix1[1][1] = 4;
int[][] matrix2 = {{1,2},{3,4}};