Copying Arrays

Question

I have the following method to copy part of one array to another:
public static int[] subArray(int[] a, int left, int right){
     int j=0;
     int[] b=new int[100];
     for(int i=left; i >= right; i++){
     b[j]=a;
     j++;
     return b;
but when I test this it seems to give me the following output:
[I@310d42
Does anybody know why it does this? Thanks

Answer 1

public static void arraycopy(
Object source,
int srcIndex,
Object dest,
int destIndex,
int length,
public int[] copypartofarray(int[] a, int left, int right){
int n = (left - right)+1;
if(n < 0){n = -n;}
int[] b = new int[ n ]
System.arraycopy(a,left,b,0,n);
return b; // i think that's about right 
//or to make the new array any size your going to need to add saftey
//check's to make sure you dont get a index out of bound's exception
public int[] copypartofarray(int[] a, int left, int right,int newarraylenghth){
int[] b = new int[ newarraylenghth ]
System.arraycopy(a,left,b,0,newarraylenghth);
return b;
}hope that's what your looking for.