Java中Math.round()方法的取整规则

just一句话:取最近的正数,当有两个最近的正数时,就取最大的那个!

举个例子:

public class Test {
    public static void main(String[] args) {
        System.out.println(Math.round(10.6));//11
        System.out.println(Math.round(-10.6));//-11
        System.out.println(Math.round(9.5));//10
        System.out.println(Math.round(-9.5));//-9
        System.out.println(Math.round(10.49));//10
        System.out.println(Math.round(-10.49));//-10
    }
}

 

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Origin blog.csdn.net/shenyipeng9889/article/details/108797300