递归求和数组

Posted 2022-12-06 Qunar_尤雪萍

递归求和数组

/**
 * 递归求和数组
 * Created by xueping.you on 15-8-5.
 */
public class RecursionSum 
    private final static Logger logger = LoggerFactory.getLogger(RecursionSum.class);

    public static int getSum(int []arry , int len)
        return len==0?0 : getSum(arry, len-1)+arry[len-1];
    

    public static void main(String []args)
        logger.info("sum result=" ,getSum(new int[]1,2,3,4,5,6 , 6));
    

result:
22:47:32.738 [main] INFO c.qyou.data.arithmetic.RecursionSum - sum result=21