logo Practice-It logo

Main Page → Problems → Solve a Problem

Bunch

Author: Stuart Reges (on 2014/02/13)

Assuming that the following classes have been defined: 

        public class Page extends Folder {
            public void method3() {
                System.out.println("Page 3");
            }
        }

        public class Bit extends Bunch {
            public void method1() {
                System.out.println("Bit 1");
            }

            public void method3() {
                System.out.println("Bit 3");
            }
        }

        public class Folder extends Bunch {
            public void method1() {
                System.out.println("Folder 1");
            }

            public void method3() {
                System.out.println("Folder 3");
                super.method3();
            }
        }

        public class Bunch {
            public void method2() {
                System.out.println("Bunch 2");
                method3();
            }
        
            public void method3() {
                System.out.println("Bunch 3");
            }
        }

And assuming the following variables have been defined: 

        Object var1 = new Folder();
        Bunch var2 = new Bunch();
        Bunch var3 = new Bit();
        Folder var4 = new Page();
        Object var5 = new Bunch();
        Bunch var6 = new Page();

In the table below, indicate in the right-hand column the output produced by the statement in the left-hand column. If the statement produces more than one line of output, indicate the line breaks with slashes as in "a/b/c" to indicate three lines of output with "a" followed by "b" followed by "c". If the statement causes an error, fill in the right-hand column with either the phrase "compiler error" or "runtime error" to indicate when the error would be detected.

var1.method2();
var2.method2();
var3.method2();
var4.method2();
var5.method2();
var6.method2();
var1.method3();
var2.method3();
var3.method3();
var4.method3();
var5.method3();
var6.method3();
((Bit)var6).method1();
((Bunch)var1).method1();
((Bunch)var1).method2();
((Folder)var1).method3();
((Folder)var6).method1();
((Page)var1).method1();
((Page)var4).method2();
((Folder)var3).method1();

You must log in before you can solve this problem.


Log In

If you do not understand how to solve a problem or why your solution doesn't work, please contact your TA or instructor.
If something seems wrong with the site (errors, slow performance, incorrect problems/tests, etc.), please

Is there a problem? Contact a site administrator.