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System.out.println(n); } A. 7 B. 6 C. 8 D. n 27. Given that "int[]a-new int[100].", which of the following array element is incorrect? ( ) A. a[0] B. a[1] C. a[99] D. a[100] 28. Which of the following modifiers is a must for static field of a Java class? ( ) A. final B. static C. public D. volatile 29. Assuming that the Child class is a subclass of the Base class, which of the following creates an object statement is wrong? ( ) A. Base base=new Child(); B. Base base=new Base(); C. Child child-new Child(); D. Child child-new Base(); 30. To construct an instance of the ArrayList class, which implements the List interface. Which of the following statements is correct? ( ) A. ArrayList myList-new Object(); B. List myList=new ArrayList (); C. ArrayList myList-new List(); D. List myList new List ();

System.out.println(n); } A. 7 B. 6 C. 8 D. n 27. Given that "int[]a-new int[100].", which of the following array element is incorrect? ( ) A. a[0] B. a[1] C. a[99] D. a[100] 28. Which of the following modifiers is a must for static field of a Java class? ( ) A. final B. static C. public D. volatile 29. Assuming that the Child class is a subclass of the Base class, which of the following creates an object statement is wrong? ( ) A. Base base=new Child(); B. Base base=new Base(); C. Child child-new Child(); D. Child child-new Base(); 30. To construct an instance of the ArrayList class, which implements the List interface. Which of the following statements is correct? ( ) A. ArrayList myList-new Object(); B. List myList=new ArrayList (); C. ArrayList myList-new List(); D. List myList new List ();

System.out.println(n); } A. 7 B. 6 C. 8 D. n 27. Given that "int[]a-new int[100].", which of the following array element is incorrect? ( ) A. a[0] B. a[1] C. a[99] D. a[100] 28. Which of the following modifiers is a must for static field of a Java class? ( ) A. final B. static C. public D. volatile 29. Assuming that the Child class is a subclass of the Base class, which of the following creates an object statement is wrong? ( ) A. Base base=new Child(); B. Base base=new Base(); C. Child child-new Child(); D. Child child-new Base(); 30. To construct an instance of the ArrayList class, which implements the List interface. Which of the following statements is correct? ( ) A. ArrayList myList-new Object(); B. List myList=new ArrayList (); C. ArrayList myList-new List(); D. List myList new List ();

System.out.println(n); } A. 7 B. 6 C. 8 D. n 27. Given that "int[]a-new int[100].", which of the following array element is incorrect? ( ) A. a[0] B. a[1] C. a[99] D. a[100] 28. Which of the following modifiers is a must for static field of a Java class? ( ) A. final B. static C. public D. volatile 29. Assuming that the Child class is a subclass of the Base class, which of the following creates an object statement is wrong? ( ) A. Base base=new Child(); B. Base base=new Base(); C. Child child-new Child(); D. Child child-new Base(); 30. To construct an instance of the ArrayList class, which implements the List interface. Which of the following statements is correct? ( ) A. ArrayList myList-new Object(); B. List myList=new ArrayList (); C. ArrayList myList-new List(); D. List myList new List ();

System.out.println(n); } A. 7 B. 6 C. 8 D. n 27. Given that "int[]a-new int[100].", which of the following array element is incorrect? ( ) A. a[0] B. a[1] C. a[99] D. a[100] 28. Which of the following modifiers is a must for static field of a Java class? ( ) A. final B. static C. public D. volatile 29. Assuming that the Child class is a subclass of the Base class, which of the following creates an object statement is wrong? ( ) A. Base base=new Child(); B. Base base=new Base(); C. Child child-new Child(); D. Child child-new Base(); 30. To construct an instance of the ArrayList class, which implements the List interface. Which of the following statements is correct? ( ) A. ArrayList myList-new Object(); B. List myList=new ArrayList (); C. ArrayList myList-new List(); D. List myList new List ();

1. Which of the following statements is true about interfaces? ( ) A. You can define non-abstract methods in an interface B. Variables can be defined in the interface C. The methods defined in the interface are static, public, abstract D. Interface is not a class, but a set of requirements for classes 2. In Java, what are the access rights that can only be accessed by methods of subclasses or classes in the same package? ( ) A. Public B. Private C. Protected D. Packaged 3. When is the constructor being called to? ( ) A. When designing a class B. When creating an object C. When calling the object method D. When defining a class 4. Which of the following is incorrect about overloading? ( ) A. Must be in the same class B. Same method name C. The return value can be different D. The parameter list is same 5. Which of the following statements about package is wrong? ( ) A. Only one import statement exists in one java file B. Use the package keyword to specify the packages to which the class belongs C. A java package is a group of similar types of classes, interfaces and sub- packages D. Import package requires the keyword import 6. There is a class Car, which statement about its constructor is correct? ( ) A. void Car (double x){...} B. Car (double x){...} C. car( double x ) {...} D. void car( double x){...} 7. Which of the following is correct about the continue statement? ( ) A. Break off only the innermost loop B. Break off only the outermost loop 1