Question

How to use BigDecimal in Java

Answer 1

package javaapplication1;
 
import java.math.BigDecimal;

public class JavaApplication1 {
 
    public static void main(String[] args) {
  
        double d = 3.14;
        BigDecimal a = new BigDecimal(d);
        BigDecimal b = new BigDecimal("1");
        BigDecimal c = new BigDecimal("0.0000000001");
       
        BigDecimal x = b.divide(a, 9, BigDecimal.ROUND_FLOOR);
               
        BigDecimal y = b.add(c);
        
        System.out.println(a);
        System.out.println(b);
        System.out.println(c);
        System.out.println(x);
        System.out.println(y);
    }
}
 
/*
    
run:
    
3.140000000000000124344978758017532527446746826171875
1
1E-10
0.318471337
1.0000000001
    
*/

 

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