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Question 5
What output is produced by the program shown in Listing 5 ?
- A. Compiler Error
- B. Runtime Error
- C. ABC DEF GHI
- D. None of the above.
| Listing 5 . Listing for Question 5. |
|---|
import java.util.ArrayList;
public class Ap145{public static void main(
String args[]){
new Worker().doIt();}//end main()
}//end class Ap145class Worker{
void doIt(){ArrayList ref = null;
ref = new ArrayList(1);ref.add("ABC ");
ref.add("DEF ");ref.add("GHI");System.out.println(
(String)ref.get(0) +(String)ref.get(1) +
(String)ref.get(2));}//end doIt()
}// end class Worker |
Question 6
What output is produced by the program shown in Listing 6 ?
- A. Compiler Error
- B. Runtime Error
- C. ABC DEF GHI
- D. None of the above.
| Listing 6 . Listing for Question 6. |
|---|
import java.util.ArrayList;
public class Ap146{public static void main(
String args[]){
new Worker().doIt();}//end main()
}//end class Ap146class Worker{
void doIt(){ArrayList ref = null;
ref.add("ABC ");ref.add("DEF ");
ref.add("GHI");System.out.println((String)ref.get(0) +
(String)ref.get(1) +(String)ref.get(2));
}//end doIt()}// end class Worker |
Question 7
What output is produced by the program shown in Listing 7 ?
- A. Compiler Error
- B. Runtime Error
- C. ABC DEF GHI
- D. None of the above.
| Listing 7 . Listing for Question 7. |
|---|
import java.util.ArrayList;
public class Ap147{public static void main(
String args[]){
new Worker().doIt();}//end main()
}//end class Ap147class Worker{
void doIt(){ArrayList ref = null;
ref = new ArrayList(1);ref.add("ABC ");
ref.add("DEF ");System.out.println((String)ref.get(0) +
(String)ref.get(1) +(String)ref.get(2));
}//end doIt()}// end class Worker |
Question 8
What output is produced by the program shown in Listing 8 ?
- A. Compiler Error
- B. Runtime Error
- C. Infinity
- D. None of the above.
| Listing 8 . Listing for Question 8. |
|---|
public class Ap148{
public static void main(String args[]){new Worker().doIt();
}//end main()}//end class Ap148
class Worker{void doIt(){
System.out.println(1.0/0);}//end doIt()
}// end class Worker |
Question 9
What output is produced by the program shown in Listing 9 ?
- A. Compiler Error
- B. Runtime Error
- C. Infinity
- D. None of the above.
| Listing 9 . Listing for Question 9. |
|---|
public class Ap149{
public static void main(String args[]){new Worker().doIt();
}//end main()}//end class Ap149
class Worker{void doIt(){
System.out.println(1/0);}//end doIt()
}// end class Worker |
Question 10
What output is produced by the program shown in Listing 10 ?
- A. Compiler Error
- B. Runtime Error
- C. AB CD EF
- D. None of the above.
| Listing 10 . Listing for Question 10. |
|---|
public class Ap150{
public static void main(String args[]){new Worker().doIt();
}//end main()}//end class Ap150
class Worker{void doIt(){
String[]ref = {"AB ","CD ","EF "};
for(int i = 0; i<= 3; i++){
System.out.print(ref[i]);
}//end forloopSystem.out.println("");
}//end doIt()}// end class Worker |
Read also:
OpenStax, Object-oriented programming (oop) with java. OpenStax CNX. Jun 29, 2016 Download for free at https://legacy.cnx.org/content/col11441/1.201
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