Which of the following is FALSE about arrays on Java

Predict the output?

public class Main {

public static void main(String args[]) {

int arr[] = {10, 20, 30, 40, 50};

for(int i=0; i < arr.length; i++)

{

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

}

}

}

class Test {

public static void main(String args[]) {

int arr[2];

System.out.println(arr[0]);

System.out.println(arr[1]);

}

}

public class Main {

public static void main(String args[]) {

int arr[][] = new int[4][];

arr[0] = new int[1];

arr[1] = new int[2];

arr[2] = new int[3];

arr[3] = new int[4];

int i, j, k = 0;

for (i = 0; i < 4; i++) {

for (j = 0; j < i + 1; j++) {

arr[i][j] = k;

k++;

}

}

for (i = 0; i < 4; i++) {

for (j = 0; j < i + 1; j++) {

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

k++;

}

System.out.println();

}

}

}

Which of the following is the correct way of importing an entire package ‘pkg’?