Math.ceil,Math.round,Math.floor区别
Math.ceil,Math.round,Math.floor区别
//向上取整
System.out.println("amt1=" + Math.ceil(71.01));
//四舍五入
System.out.println("amt2=" + Math.round(71.01));
//向下取值,直接舍弃小数点
System.out.println("amt3=" + Math.floor(71.01));
输出结果:
amt1=72.0
amt2=71
amt3=71.0