fork(3) download

copy

/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
    public static void main(String[] args)
    {
        int bdErrors = 0, doubleErrors = 0;
        for(BigDecimal bd = BigDecimal.ZERO; bd.compareTo(BigDecimal.ONE) <=0 ; bd = bd.add(new BigDecimal("0.0001"))) {
            // test BigDecimal rounds as expected.
            BigDecimal bd2 = bd.setScale(2, RoundingMode.HALF_UP);
            BigDecimal error = bd2.remainder(new BigDecimal("0.01"));
            if (error.compareTo(BigDecimal.ZERO) != 0)
                bdErrors++;
            // now try this with double.
            double d = bd.doubleValue();
            double d2 = Math.round(d * 100) / 100.0;
 
            // has any information been lots, use BigDecimal to do calculations to be sure of no accidental errors.
            BigDecimal bd3 = BigDecimal.valueOf(d2);
            BigDecimal error3 = bd3.remainder(new BigDecimal("0.01"));
            if (error3.compareTo(BigDecimal.ZERO) != 0)
                doubleErrors++;
 
        }
        System.out.printf("BigDecimal errors %,d & double errors %,d%n", bdErrors, doubleErrors);
    }
}

Main.java:13: error: cannot find symbol
        for(BigDecimal bd = BigDecimal.ZERO; bd.compareTo(BigDecimal.ONE) <=0 ; bd = bd.add(new BigDecimal("0.0001"))) {
            ^
  symbol:   class BigDecimal
  location: class Ideone
Main.java:13: error: cannot find symbol
        for(BigDecimal bd = BigDecimal.ZERO; bd.compareTo(BigDecimal.ONE) <=0 ; bd = bd.add(new BigDecimal("0.0001"))) {
                            ^
  symbol:   variable BigDecimal
  location: class Ideone
Main.java:13: error: cannot find symbol
        for(BigDecimal bd = BigDecimal.ZERO; bd.compareTo(BigDecimal.ONE) <=0 ; bd = bd.add(new BigDecimal("0.0001"))) {
                                                          ^
  symbol:   variable BigDecimal
  location: class Ideone
Main.java:13: error: cannot find symbol
        for(BigDecimal bd = BigDecimal.ZERO; bd.compareTo(BigDecimal.ONE) <=0 ; bd = bd.add(new BigDecimal("0.0001"))) {
                                                                                                ^
  symbol:   class BigDecimal
  location: class Ideone
Main.java:15: error: cannot find symbol
            BigDecimal bd2 = bd.setScale(2, RoundingMode.HALF_UP);
            ^
  symbol:   class BigDecimal
  location: class Ideone
Main.java:15: error: cannot find symbol
            BigDecimal bd2 = bd.setScale(2, RoundingMode.HALF_UP);
                                            ^
  symbol:   variable RoundingMode
  location: class Ideone
Main.java:16: error: cannot find symbol
            BigDecimal error = bd2.remainder(new BigDecimal("0.01"));
            ^
  symbol:   class BigDecimal
  location: class Ideone
Main.java:16: error: cannot find symbol
            BigDecimal error = bd2.remainder(new BigDecimal("0.01"));
                                                 ^
  symbol:   class BigDecimal
  location: class Ideone
Main.java:17: error: cannot find symbol
            if (error.compareTo(BigDecimal.ZERO) != 0)
                                ^
  symbol:   variable BigDecimal
  location: class Ideone
Main.java:24: error: cannot find symbol
            BigDecimal bd3 = BigDecimal.valueOf(d2);
            ^
  symbol:   class BigDecimal
  location: class Ideone
Main.java:24: error: cannot find symbol
            BigDecimal bd3 = BigDecimal.valueOf(d2);
                             ^
  symbol:   variable BigDecimal
  location: class Ideone
Main.java:25: error: cannot find symbol
            BigDecimal error3 = bd3.remainder(new BigDecimal("0.01"));
            ^
  symbol:   class BigDecimal
  location: class Ideone
Main.java:25: error: cannot find symbol
            BigDecimal error3 = bd3.remainder(new BigDecimal("0.01"));
                                                  ^
  symbol:   class BigDecimal
  location: class Ideone
Main.java:26: error: cannot find symbol
            if (error3.compareTo(BigDecimal.ZERO) != 0)
                                 ^
  symbol:   variable BigDecimal
  location: class Ideone
14 errors

Standard output is empty