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What output is produced by the program shown in Listing 5 ?
| Listing 5 . Listing for Question 5. |
|---|
public class Ap124{
public static void main(String args[]){new Worker().doIt();
}//end main()}//end class Ap124
class Worker{void doIt(){
Base myVar = new Base();myVar.test();
System.out.println("");}//end doIt()
}// end class Workerabstract class Base{
public void test(){System.out.print("Base ");};
}//end class Baseclass A extends Base{
public void test(){System.out.print("A ");
}//end test()}//end class A |
What output is produced by the program shown in Listing 6 ?
| Listing 6 . Listing for Question 6. |
|---|
public class Ap125{
public static void main(String args[]){new Worker().doIt();
}//end main()}//end class Ap125
class Worker{void doIt(){
Base myVar = new Base();myVar.test();
System.out.println("");}//end doIt()
}// end class Workerclass Base{
public void test(){System.out.print("Base ");};
}//end class Baseclass A extends Base{
public void test(){System.out.print("A ");
}//end test()}//end class A |
What output is produced by the program shown in Listing 7 ?
| Listing 7 . Listing for Question 7. |
|---|
public class Ap126{
public static void main(String args[]){new Worker().doIt();
}//end main()}//end class Ap126
class Worker{void doIt(){
Base myVar = new Base();((A)myVar).test();
System.out.println("");}//end doIt()
}// end class Workerclass Base{
public void test(){System.out.print("Base ");};
}//end class Baseclass A extends Base{
public void test(){System.out.print("A ");
}//end test()}//end class A |
What output is produced by the program shown in Listing 8 ?
| Listing 8 . Listing for Question 8. |
|---|
public class Ap127{
public static void main(String args[]){new Worker().doIt();
}//end main()}//end class Ap127
class Worker{void doIt(){
Base myVar = new A();((A)myVar).test();
System.out.println("");}//end doIt()
}// end class Workerclass Base{
public void test(){System.out.print("Base ");};
}//end class Baseclass A extends Base{
public void test(){System.out.print("A ");
}//end test()}//end class A |
What output is produced by the program shown in Listing 9 ?
| Listing 9 . Listing for Question 9. |
|---|
public class Ap128{
public static void main(String args[]){new Worker().doIt();
}//end main()}//end class Ap128
class Worker{void doIt(){
Base myVar = new A();myVar.test();
System.out.println("");}//end doIt()
}// end class Workerclass Base{
public void test(){System.out.print("Base ");};
}//end class Baseclass A extends Base{
public void test(){System.out.print("A ");
}//end test()}//end class A |
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