cs_176:fraction_add_instance_method
Fraction class instance add method
- Use the original Fraction class example as a starting point.
- In the original Fraction class example, the addFraction and subtractFraction methods were static methods in TestFraction.
- In the Fraction2 BlueJ project, make the addFraction and subtractFraction methods instance methods of the Fraction class.
- This is the new way we want to be able to work with Fraction Class objects:
// // Code that goes in TestFraction.java: // Fraction f1 = new Fraction( 5, 8 ); Fraction f2 = new Fraction( 1, 9 ); Fraction f3 = new Fraction(); // This time, addFraction is an instance method of the Fraction // class, so we use the object f3's addFraction() method, i.e., // f3.addFraction(). f3.addFraction( f1, f2 ); // f3 holds the result of 5/8 + 1/9 System.out.println( f1 + " + " + f2 + " = " + f3);
cs_176/fraction_add_instance_method.txt · Last modified: 2015/03/06 14:58 by jchung