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Which of the follow are true statements.
| a. | A nested class is any class that is declared within the body of another class or interface. |
| b. | A nested class can not be declared within the body of an interface declaration. |
| c. | An inner class is a nested class that is not static. |
| d. | A nested class can not be declared static. |
| e. | A named class is any class that is not anonymous. |
Which of the follow are true statements.
| a. | A local class is declared within a method, constructor or block. |
| b. | An anonymous class is always a local class. |
| c. | A local class is a nested class. |
| d. | A local class is a member class. |
| e. | A local class is always a named class. |
Which of the following are class modifiers? Select all that are applicable to a top-level class and all that are applicable to a nested class. It is not required that a modifier be applicable to both.
| a. | abstract |
| b. | extends |
| c. | final |
| d. | implements |
| e. | private |
| f. | protected |
| g. | public |
| h. | static |
| i. | synchronized |
| j. | transient |
| k. | volatile |
Which of the following modifiers can be applied to a member class?
| a. | abstract |
| b. | final |
| c. | public |
| d. | protected |
| e. | private |
| f. | static |
| g. | synchronized |
| h. | transient |
Which of the following modifiers can be applied to a local class?
| a. | public |
| b. | protected |
| c. | private |
| d. | abstract |
| e. | static |
| f. | final |
class Z {
abstract class A {} // 1
final class B {} // 2
private class C {} // 3
protected class D {} // 4
public class E {} // 5
}
Which class declaration results in a compile-time error?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | 5 |
| f. | None of the above |
class Z {
static class F {} // 1
synchronized class G {} // 2
transient class H {} // 3
volatile class I {} // 4
}
Which class declaration does not result in a compile-time error?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | None of the above |
class Z {
void m1() {
abstract class A {} // 1
final class B {} // 2
private class C {} // 3
protected class D {} // 4
public class E {} // 5
}
}
Which class declarations result in compile-time errors?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | 5 |
class Z {
void m1() {
static class F {} // 1
synchronized class G {} // 2
transient class H {} // 3
volatile class I {} // 4
abstract class A {} // 5
final class B {} // 6
}
}
Compile-time errors are generated at which lines?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | 5 |
| f. | 6 |
class A {
A() {} // 1
int A; // 2
void A() {} // 3
class A {} // 4
}
Which line results in a compile-time error?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | None of the above |
class A {
int B; // 1
void B() {} // 2
class B {} // 3
}
Which line results in a compile-time error?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | None of the above |
abstract class A { // 1
private abstract void m1(); // 2
private abstract class B {} // 3
private class C extends B {} // 4
}
Which line results in a compile-time error?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | None of the above. |
abstract class A { // 1
abstract final void m1(); // 2
abstract final class B {} // 3
class C extends B {} // 4
}
Which line does not result in a compile-time error?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | None of the above |
abstract class A { // 1
abstract synchronized void m1(); // 2
abstract synchronized class B {} // 3
synchronized class C extends B {} // 4
}
Which line does not result in a compile-time error?
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
| e. | None of the above |