Java BigDecimal

 

 

package com.helen.test;

import java.math.BigDecimal;

public class TestBigDecimal {

    /**
     * @param args
     */
    public static void main(String[] args) {
        
        double d1=0.31125;
        double d2=3;
        System.out.println(d1*d2); //0.9337500000000001
        
        float f1=0.31125f;
        float f2=3;
        System.out.println(f1*f2); //0.93375003
        
        BigDecimal b1=new BigDecimal(0.31125+"");
        BigDecimal b2=new BigDecimal(3);
        BigDecimal b3= b1.multiply(b2);

        System.out.println(b3); //0.93375
        
        
        

    }

}