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| package Lecture4;
public class ArrayMainDouble {
public static void main(String[] args) {
// int[][] arr = new int[2][4];
int[][] arr = new int[2][];
arr[0] = new int[5];
arr[1] = new int[3];
System.out.println("arr : " + arr);
System.out.println("arr.length : " + arr.length);
for(int i=0; i < arr.length; i++) {
System.out.println("arr[" + i +"] : " + arr[i]);
System.out.println("arr[" + i +"].length : " + arr[i].length);
}
/*
int[][] arr = new int[3][];
arr[0] = new int[] {1, 2, 3, 4};
arr[1] = new int[] {5, 6, 7};
arr[2] = new int[] {8, 9, 10, 11, 12};
for(int i=0; i<arr.length; i++) {
for(int j=0; j<arr[i].length; j++) {
System.out.print(arr[i][j]+" ");
}
System.out.println();
}
*/
}
}
|
