- •1. Given:
- •2. Which two statements are true? (Choose two.)
- •3. Given:
- •4. Given:
- •5. Given:
- •6. Given:
- •10. Given:
- •11. Given:
- •13. Given:
- •14. Given:
- •15. Given:
- •16. Given:
- •17. Assume that country is set for each class. Given:
- •12. Given:
- •18. Which Man class properly represents the relationship "Man has a best friend who is a Dog"?
- •19. Given:
- •20. Given :
- •21. Given:
- •22. Given:
- •23. Given:
- •24. Click the Exhibit button.
- •25. Given:
- •30. Given:
- •31. Given:
- •32. Which two classes correctly implement both the java.Lang.Runnable and the java.Lang.Clonable interfaces? (Choose two.)
- •33. Click the Exhibit button.
- •2. Public static void main(String[] args) {
- •34. Given:
- •20. Public static void main(String[] args) {
- •35. Click the Exhibit button.
- •36. Given:
- •37. Given:
- •38. Which two code fragments correctly create and initialize a static array of int elements? (Choose two.)
- •39. Given:
- •40. Given:
- •44. A programmer needs to create a logging method that can accept an arbitrary number of arguments. For example, it may be called in these ways:
- •46. Click the Exhibit button.
- •47. A JavaBeans component has the following field:
- •48. Given:
- •49. Given:
- •50. Click the Exhibit button.
- •51. Click the Exhibit button.
- •52. Given:
- •53. Given:
- •54. Given:
- •55. Given:
- •56. Click the Exhibit button.
- •22. Public static void main(String[] args) {
- •57. Given:
- •58. Click the Exhibit button.
- •31. Public static void main(String[] args) {
- •59. Given:
- •60. Given:
- •61. Given:
- •11. Public static void main(String[] args) {
- •62. Given:
- •11. Public static void main(String[] args) {
- •63. Given:
- •67. Give:
- •72. Click the Exhibit button.
- •73. Click the Exhibit button.
- •74. Given:
- •75. Click the Exhibit button.
- •76. Click the Exhibit button.
- •77. Given:
- •78. Given:
- •19. Public static void main(String[] args) {
- •79. Which two code fragments will execute the method doStuff() in a separate thread?
- •83. Click the Exhibit button.
- •84. Click the Exhibit button.
- •89. Given a method that must ensue that its parameter is not null:
- •90. Click the Exhibit button.
- •96. Given this method in a class:
- •97. Given:
- •98. Given:
- •99. Given:
- •2. Public static void main(String[] args) {
- •100. Given:
- •101. Given:
- •102. Given:
- •11. Public static void main(String[] args) {
- •103. When comparing java.Io.BufferedWriter to java.Io.FileWriter, which capability exists as a method in only one of the two?
- •104. Given:
- •105. Click the Exhibit button.
- •106.Which three concerning the use of the java.Io.Serializable interface are true?
- •108. Assuming that the serializeBanana2() and the deserializeBanana2() methods will correctly use Java serialization and given:
- •109. Given:
- •11. Private int X;
- •110. Given:
- •111. Given:
- •112. Given:
- •113. Given:
- •114. Given:
- •115. Given a valid DateFormat object named df, and
72. Click the Exhibit button.
1. public class Test {
2.
3. public static void main(String [] args) {
4. boolean assert = true;
5. if(assert) {
6. System.out.println("assert is true");
7. }
8. }
9.
10. }
Given:
javac -source 1.3 Test.java
What is the result?
A. Compilation fails.
B. Compilation succeeds with errors.
C. Compilation succeeds with warnings.
D. Compilation succeeds without warnings or errors.
73. Click the Exhibit button.
1. public class Test {
2.
3. public static void main(String [] args) {
4. boolean assert = true;
5. if(assert) {
6. System.out.println("assert is true");
7. }
8. }
9.
10. }
Given:
javac -source 1.3 Test.java
What is the result?
A. Compilation fails.
B. Compilation succeeds with errors.
C. Compilation succeeds with warnings.
D. Compilation succeeds without warnings or errors.
74. Given:
23.int z=5;
24.
25. public void stuff1(int x) {
26. assert (x> 0);
27. switch(x) {
28. case 2: x= 3;
29. default: assert false; } }
30.
31. private void stuff2(int y) { assert (y < 0); }
32.
33. private void stuff3() { assert (stuff4O); }
34.
35. private boolean stuff4() { z = 6; return false; }
Which is true?
A. All of the assert statements are used appropriately.
B. Only the assert statement on line 31 is used appropriately.
C. The assert statements on lines 29 and 31 are used appropriately.
D. The assert statements on lines 26 and 29 are used appropriately.
E. The assert statements on lines 29 and 33 are used appropriately.
F. The assert statements on lines 29, 31, and 33 are used appropriately.
G. The assert statements on lines 26, 29, and 31 are used appropriately.
75. Click the Exhibit button.
SomeException:
1. public class SomeException {
2. }
Class A:
1. public class A {
2. public void doSomething() { }
3. }
Class B:
1. public class B extends A {
2. public void doSomething() throws SomeException { }
3. }
Which is true about the two classes?
A. Compilation of both classes will fail.
B. Compilation of both classes will succeed.
C. Compilation of class A will fail. Compilation of class B will succeed.
D. Compilation of class B will fail. Compilation of class A will succeed.
76. Click the Exhibit button.
Class TestException
1. public class TestException extends Exception {
2. }
Class A:
1. public class A {
3. public String sayHello(String name) throws TestException {
5. if(name == null) {
6. throw new TestException();
7. }
9. return "Hello "+ name;
10. }
12. }
A programmer wants to use this code in an application:
45. A a=new A();
46. System.out.println(a.sayHello("John"));
Which two are true? (Choose two.)
A. Class A will not compile.
B. Line 46 can throw the unchecked exception TestException.
C. Line 45 can throw the unchecked exception TestException.
D. Line 46 will compile if the enclosing method throws a TestException.
E. Line 46 will compile if enclosed in a try block, where TestException is caught.