taxcalc.java

Beginning Java 2, SDK 1.4 Edition Exercise Code samples for this book

//Chapter 2, Exercise 3 

public class TaxCalc {
  public static void main(String args[]) {
    double income = 87562.34;   
    double taxRate = 0.35;   // 35%  corresponds to 0.35
    double tax = income*taxRate;             
    
    int taxDollars = (int)tax;
    int taxCents = (int)Math.round((tax - taxDollars)*Math.pow(10.0, 2.0)); 

    // Output the results:
    System.out.println("Gross income is $" + (int)income +"."+ (int)Math.round((income - (int)income)*Math.pow(10.0, 2.0)));
    System.out.println("Tax to pay is " + taxDollars + " dollars and "+taxCents+" cents.");

 /*
    The output statements above show how you can put arithmetic expressions as part of the argument
    to the println() method. The compiler takes care of coverting the values that result from the
    arithmetic expressions to a string.
 */
  }
}