MCQ 1 Java does not define which type modifier?

(A) Auto (B) Extern (C) Register (D) All of these

MCQ 2 If you are inserting any value in the wrong index as shown below, 1. int a[]=new int[5]; 2. a[10]=50; it would result in ______.

(A) NullPointerException (B) ArrayIndexOutOfBoundsException (C) ArithmeticException (D) NumberFormatException

MCQ 3 The thread may be in

(A) Various waiting states (B) Ready state (C) Running state (D) All of these

MCQ 4 What invokes immediately after the start() method and also any time the applet needs to repaint itself in the browser?

(A) stop() (B) init() (C) paint() (D) destroy()

MCQ 5 Inheritance is a 

(A) Enables to add additional features to an existing class without modifying it (B) Supports the concept of hierarchical classifications (C) Is a process by which objects of one class acquire the properties of objects of another class (D) All of these

MCQ 6 Which cookie it is valid for single session only and it is removed each time when the user closes the browser?

(A) Persistent cookie (B) Non-persistent cookie (C) All the above (D) All of the above

MCQ 7 When a program class implements an interface, it must provide behavior for

(A) two methods defined in that interface (B) any methods in a class (C) only certain methods in that interface (D) all methods defined in that interface

MCQ 8 What is the extension of java code files?

(A) .class (B) .java (C) .txt (D) .js

MCQ 9 Which of the following statement is/are true?

• i) The name of a java program file must match the name of the class with the extension .java
• ii) Two methods cannot have the same name in java
<

(A) i- only (B) ii- only (C) Both i and ii (D) None of the above

Correct Answer Choice A i- only
See Answer

MCQ 10 _____________ can appear only where in the body of a java method.

(A) definition (B) declaration (C) determine (D) package

MCQ 11 Object is a __________________ entity.

(A) normal (B) physical (C) logical (D) normal

MCQ 12 Which method is used to change the name of a thread?

(A) public String getName() (B) public void setName(String name) (C) public void getName() (D) public String setName(String name)

MCQ 13 Which one of the following web browsers uses just-in-time (JIT) complier?

(A) Netscape navigator (B) Internet Explorer (C) Hot JAVA (D) None of these

MCQ 14 Which configuration files are used in Struts?

(A) ApplcationResources.properties (B) struts-config.xml (C) All the above (D) All of the above

MCQ 15 For the method that does not return a value, the keyword used is

(A) Boolean (B) Void (C) Null (D) Short

MCQ 16 The default priority is

(A) 2 (B) 3 (C) 4 (D) 5

MCQ 17 What invokes immediately after the start() method and also any time the applet needs to repaint itself in the browser?

(A) stop() (B) init() (C) paint() (D) destroy()

MCQ 18 Which method can set or change the text in a Label?

(A) setText() (B) getText() (C) All the above (D) All of the above

MCQ 19 Which one of the following is a java keyword?

(A) Switch (B) While (C) Public (D) Void

MCQ 20 Which of the following methods belong to the String class?

(A) length() (B) CompareTo() (C) equals() (D) All of the above

MCQ 21 Which of the following in NOT represent legal flow control statements?

(A) break; (B) break(); (C) continue outer; (D) return;

MCQ 22 ______________ is the key to ________________.

(A) Serialization, persistence (B) Persistence, inheritance (C) Inheritance, object (D) Persistence, serialization

MCQ 23 ?: is a

(A) Conditional operator (B) Assignment operator (C) Inequality (D) Logical AND

MCQ 24 Which validates the given string with the specified regular expression,it can be used in password, security key etc.?

(A) Regex Validation (B) Url Validation (C) Email Validation (D) RequiredString Validator

MCQ 25 Abbreviate the term JMS?

(A) Java Message Service (B) Java Monitor Service (C) Java Message Session (D) Java Monitor Session