round.java

这是一个以JAVA编写的程序,本人还没有试过,是一个简单的温度控制系统

package net.sf.dz.util;

public class Round {

    public static double round3(double value) {
    
        return ((double)Math.round(value * 1000))/1000;
    }

    public static double round2(double value) {
    
        return ((double)Math.round(value * 100))/100;
    }

    public static double round1(double value) {
    
        return ((double)Math.round(value * 10))/10;
    }
}