Solutions to Self-Study Exercises

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Solution 1.1	The value 12 is stored in num.
Solution 1.2	int num2 = 711 + 712;

Solution 1.3	The definition of the OldMacDonald class is: public class OldMacDonald { public static void main(String args[]) // Main method { System.out.println("Old MacDonald had a farm"); System.out.println("E I E I O."); System.out.println("And on his farm he had a duck."); System.out.println("E I E I O."); System.out.println("With a quack quack here."); System.out.println("And a quack quack there."); System.out.println("Here a quack, there a quack,"); System.out.println("Everywhere a quack quack."); System.out.println("Old MacDonald had a farm"); System.out.println("E I E I O."); System.out.println("Old MacDonald had a farm"); System.out.println("E I E I O."); System.out.println("And on his farm he had a pig."); System.out.println("E I E I O."); System.out.println("With an oink oink here."); System.out.println("And an oink oink there."); System.out.println("Here an oink, there an oink,"); System.out.println("Everywhere an oink oink."); System.out.println("Old MacDonald had a farm"); System.out.println("E I E I O."); } // End of main } // End of OldMacDonald
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Solution 1.4	The definition of the Pattern class is: public class Pattern { public static void main(String args[]) // Main method { System.out.println("**********"); System.out.println("* ** ** *"); System.out.println("* ** *"); System.out.println("* * * *"); System.out.println("* **** *"); System.out.println("**********"); } // End of main } // End of Pattern