makeLast challenge

Hi,

I am trying


http://codingbat.com/prob/p137188

public int[] makeLast(int[] nums) {

int len= nums.length;
int lenNew=2*len;


int numsNew[]=new int[lenNew];
numsNew[lenNew-1]=nums[len-1];

for(int i=0;i<lenNew-1;i++)
{
numsNew[i]=0;
}
return numsNew;
  
}

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I passed alll the tests. How do i improve above code. please advise