I am doing my homework but I find it has problem here:
public static void test(int[] a){
for(int i = 0; i < a.length;i++){
a[i] = i;
}
}
public static void main(String[] args) {
// TODO Auto-generated method stub
int [] ints = {1,1,3,3,1,1,2,2,34,4,5,56};
test(ints);
for(int i = 0; i < ints.length;i++){
System.out.print(ints[i] + " ");
}
}
In this case, system will print out: 0 1 2 3 4 5 6 7 8 9 10 11
But When I change the test method to
public static void test(int[] a){
int [] a2 = {2,2,2,2,2,1,2,2,34,4,5,56};
a = a2;
}
main method system will print: 1 1 3 3 1 1 2 2 34 4 5 56
which seems like this array are not changed. Why this happen? I know maybe this is something called pass by value or reference. But I am still confusing about it.
