Reverse Integer.java

public class Solution {
    public int reverse(int x) {
        // Start typing your Java solution below
        // DO NOT write main() function
        if(x==0) return 0; 
        boolean negative=false; 
        if(x<0) { negative=true; x=-x; }
        int result=0;
        while(x!=0)
        {
            result=result*10 + x%10; 
            x=x/10; 
        }
        return negative? -result: result; 
    }
}