public static void main(String[] args) { // TODO Auto-generated method stub int a=-1>>>1; int b=0x7FFFFFFF; int arr[][]=new int[3][]; arr[0]=new int[2]; arr[1]=new int[3]; arr[2]=new int[4]; arr[0][0]=1; int []a0=arr[0]; a0[0]=2; System.out.println("" + a + " " + b); for(int i=0;i<3;i++) { System.out.println(); for(int j=0;j<arr[i].length;j++) { System.out.print(arr[i][j] + " "); } } }