lets say you have a problem . You have an array of N numbers . You want to remove the i th number . Then you need a new array not containing the j th number . You are using java . How can you do it ??
Here 's a quickie:
int[] result = null;
result = new int[n-1];
if(i > 0 ) System.arraycopy(array,0,result,0,i);
if(i+1 < n ) System.arraycopy(array,i+1,result,i,n-1-i);
}
This is quick way of removing the element you need and getting a new array devoid of the removed number .
1 comment:
why do u need a for loop?
int[] remove(int[] array, int j) {
int[] result = new int[array.length-1];
System.arraycopy(array, 0, result, 0, j);
System.arraycopy(array, j + 1, result, j, array.length-j-1);
return result;
}
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