| << Chapter < Page | Chapter >> Page > |
| Listing 9 . Listing for Question 9. |
|---|
public class Ap057{
public static void main(String args[]){new Worker().doArrays();
}//end main()}//end class definition
class Worker{public void doArrays(){
Integer[]A = new Integer[2];A[0] = new Integer(1);System.out.println(
A[1].intValue());
}//end doArrays()}// end class |
What output is produced by program shown in Listing 10 ?
A. Compiler Error
B. Runtime Error
C. 0
0 10 2 4
D. None of the above | Listing 10 . Listing for Question 10. |
|---|
public class Ap058{
public static void main(String args[]){new Worker().doArrays();
}//end main()}//end class definition
class Worker{public void doArrays(){
int A[][] = new int[3][];A[0] = new int[1];
A[1]= new int[2];A[2] = new int[3];for(int i = 0;i<A.length;i++){
for(int j=0;j<A[i].length;j++){A[i][j]= i*j;
}//end inner for loop}//end outer for loop
for(int i=0;i<A.length;i++){
for(int j=0;j<A[i].length;j++){System.out.print(
A[i][j] + " ");}//end inner for loop
System.out.println("");}//end outer for loop
}//end doArrays()}// end class |
What output is produced by the program shown in Listing 11 ?
| Listing 11 . Listing for Question 11. |
|---|
public class Ap059{
public static void main(String args[]){new Worker().doArrays();
}//end main()}//end class definition
class Worker{public void doArrays(){
Object[]A = new Object[3];//Note that there is a simpler and
// better way to do the following// but it won't illustrate my point
// as well as doing it this way.A[0] = new String("Zero");A[1] = new String("One");A[2] = new String("Two");System.out.println(A[0]+ " " +
A[1]+ " " +
A[2]);
}//end doArrays()}// end class |
What output is produced by program shown in Listing 12 ?
| Listing 12 . Listing for Question 12. |
|---|
public class Ap060{
public static void main(String args[]){new Worker().doArrays();
}//end main()}//end class definition
class Worker{public void doArrays(){
Object[]A = new Object[3];//Note that there is a simpler and
// better way to do the following// but it won't illustrate my point
// as well as doing it this way.A[0] = new String("Zero");A[1] = new Integer(1);A[2] = new Double(2.0);System.out.println(A[0]+ " " +
A[1]+ " " +
A[2]);
}//end doArrays()}// end class |
What output is produced by program shown in Listing 13 ?
| Listing 13 . Listing for Question 13. |
|---|
public class Ap061{
public static void main(String args[]){new Worker().doArrays();
}//end main()}//end class definition
class Worker{public void doArrays(){
Object[]A = new Object[3];//Note that there is a simpler and
// better way to do the following// but it won't illustrate my point
// as well as doing it this way.A[0] = new String("Zero");A[1] = new Integer(1);A[2] = new MyClass(2.0);System.out.println(A[0]+ " " +
A[1]+ " " +
A[2]);
}//end doArrays()}// end class
class MyClass{private double data;public MyClass(double data){
this.data = data;}//end constructor
}// end MyClass |
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