Java double experiments.

Output.txt

gw@airy ~/> java Reps
a: 1.0
b: 0.35
c: 0.65
d: 0.35
e: 0.035
f: 0.034999999999999996
g: 0.06999999999999999

Reps.java

This java class:

public class Reps {            
  public static void main(String[] args) {
    double a = 1.0;            
    System.out.println("a: "+a);    
    double b = a - 0.65;       
    System.out.println("b: "+b);    
    double c = a * 0.65;       
    System.out.println("c: "+c);    
    double d = 35.0 / 100.0;   
    System.out.println("d: "+d);    
    double e = 35.0 / 1000.0;  
    System.out.println("e: "+e);    
    double f = 0.70 * 0.05;    
    System.out.println("f: "+f);    
    double g = f * 2.0;        
    System.out.println("g: "+g);    
  }
}