Can anyone please explain this double problem?

Question

public class DoTest {
     static int i;
     public static void main(String[] args){
          double a = 3.0;
          double b = 0.3;
          double c = 0.3;
          double d = 0.3;
          System.out.println(c+a+b);
          System.out.println(d+c);
}Result:
3.5999999999999996
0.6
Why does the first println statement return 3.5999999999999996?
Cheers

Answer 1

import java.text.DecimalFormat;
public class DoTest {
     static int i;
     public static void main(String[] args){
          double a = 3.0;
          double b = 0.3;
          double c = 0.3;
          double d = 0.3;
          double f=c+a+b;
          DecimalFormat df=new DecimalFormat("#.##");
          System.out.println(df.format(f));
          System.out.println(d+c);
this is enougn for u man..
do sme experiment wit it