Jump Game

public class Solution {    public boolean canJump(int[] A) {        // Start typing your Java solution below        // DO NOT write main() function     if(A==null){         return false;     }        int len = A.length;     int cur = A[0];          if(len==1&&cur==0){         return true;     }          int i=0;     for(int steps=0;i<len;i++,steps++){         if(cur<=0){             break;         }else if(cur-steps==0){             cur=A[i];             steps=0;             continue;         }else if(A[i]>=cur-steps){             cur = A[i];             steps = 0;             continue;         }     }     return i==len;         }}