State any two IOException classes.

State any two IOException classes.
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1 Answer

Answer :

A: EOFException and FileNotFoundException.
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Related questions

Why do you write ‘throws IOEXception’?

Description : Why do you write ‘throws IOEXception’?

Last Answer : A: For handling any input/output exceptions.

System.in.read() is being used, the program must specify the .................. clause. A) throws.java.out.IOException B) throws.java.in.IOException C) throws.java.io.IOException D) throws.java.io.InException

Description : System.in.read() is being used, the program must specify the .................. clause. A) throws.java.out.IOException B) throws.java.in.IOException C) throws.java.io.IOException D) throws.java.io.InException

Last Answer : C) throws.java.io.IOException

State true or false. i) Jpanel is a class included in awt package. ii) Anonymous classes are mostly used for event handling. iii) Names of anonymous classes must be unique iv) JOptionPane is an inner class A) i-false, ii-false, iii-true, iv-true B) i-true, ii-false, iii-true, iv-false C) i-false, ii-true, iii-false, iv-false D) i-true, ii-false, iii-false, iv-true

Description : State true or false. i) Jpanel is a class included in awt package. ii) Anonymous classes are mostly used for event handling. iii) Names of anonymous classes must be unique iv) JOptionPane is an inner class A) i-false ... ) i-false, ii-true, iii-false, iv-false D) i-true, ii-false, iii-false, iv-true

Last Answer : C) i-false, ii-true, iii-false, iv-false

State true or false. i) init() is called after start() in applet ii) applets are used for networking iii) inheritance is a part of Java Foundation Classes iv) final does not prevent inheritance A) i-true, ii-true, iii-false, iv-true B) i-false, ii-false, iii-false, iv-false C) i-true, ii-true, iii-true, iv-true D) i-true, ii-false, iii-false, iv-false

Description : State true or false. i) init() is called after start() in applet ii) applets are used for networking iii) inheritance is a part of Java Foundation Classes iv) final does not prevent inheritance A) i-true, ii- ... C) i-true, ii-true, iii-true, iv-true D) i-true, ii-false, iii-false, iv-false

Last Answer : B) i-false, ii-false, iii-false, iv-false

Let L be the language generated by regular expression 0*10* and accepted by the deterministic finite automata M. Consider the relation RM defined by M. As all states are reachable from the start state, RM has ................ equivalence classes. (A) 2 (B) 4 (C) 5 (D) 6

Description : Let L be the language generated by regular expression 0*10* and accepted by the deterministic finite automata M. Consider the relation RM defined by M. As all states are reachable from the start state, RM has ................ equivalence classes. (A) 2 (B) 4 (C) 5 (D) 6

Last Answer : (D) 6

The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Description : The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Last Answer : D) both B and C

The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Description : The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Last Answer : D) both B and C

Consider the two class classification task that consists of the following points: Class C1: [1 1.5] [1 -1.5] Class C2: [-2 2.5] [-2 -2.5] The decision boundary between the two classes using single perceptron is given by: (A) x1+x2+1.5=0 (B) x1+x2-1.5=0 (C) x1+1.5=0 (D) x1-1.5=0

Description : Consider the two class classification task that consists of the following points: Class C1: [1 1.5] [1 -1.5] Class C2: [-2 2.5] [-2 -2.5] The decision boundary between the two classes using single perceptron is given by: (A) x1+x2+1.5=0 (B) x1+x2-1.5=0 (C) x1+1.5=0 (D) x1-1.5=0

Last Answer : (C) x1+1.5=0 

Which of the following statements is correct? (A) Aggregation is a strong type of association between two classes with full ownership. (B) Aggregation is a strong type of association between two classes with partial ownership. (C) Aggregation is a weak type of association between two classes with partial ownership. (D) Aggregation is a weak type of association between two classes with full ownership.

Description : Which of the following statements is correct? (A) Aggregation is a strong type of association between two classes with full ownership. (B) Aggregation is a strong type of association between two ... ownership. (D) Aggregation is a weak type of association between two classes with full ownership.

Last Answer : (C) Aggregation is a weak type of association between two classes with partial ownership.

What is StringTokenizer or Scanner and examples of similar classes (if you used it)

Description : What is StringTokenizer or Scanner and examples of similar classes (if you used it)

Last Answer : A: StringTokenizer or Scanner is a class which splits up any given string into tokens separated by delimiters.

Why did you write java.util package? (only if you use classes like Scanner or StringTokenizer)

Description : Why did you write java.util package? (only if you use classes like Scanner or StringTokenizer)

Last Answer : A: To include the functions of the Scanner or StringTokenizer class from the java.util package.

A package is a collection of A) classes B) interfaces C) editing tools D) classes and interfaces

Description : A package is a collection of A) classes B) interfaces C) editing tools D) classes and interfaces

Last Answer : D) classes and interfaces

The .................. and .................... classes are abstract classes that support reading and writing of byte streams. A) reader, writer B) inputstream, outputstream C) objectinputstream, objectoutputstream D) none

Description : The .................. and .................... classes are abstract classes that support reading and writing of byte streams. A) reader, writer B) inputstream, outputstream C) objectinputstream, objectoutputstream D) none

Last Answer : B) inputstream, outputstream

A package is a collection of A) classes B) interfaces C) editing tools D) classes and interfaces

Description : A package is a collection of A) classes B) interfaces C) editing tools D) classes and interfaces

Last Answer : D) classes and interfaces

The .................. and .................... classes are abstract classes that support reading and writing of byte streams. A) reader, writer B) inputstream, outputstream C) objectinputstream, objectoutputstream D) none

Description : The .................. and .................... classes are abstract classes that support reading and writing of byte streams. A) reader, writer B) inputstream, outputstream C) objectinputstream, objectoutputstream D) none

Last Answer : B) inputstream, outputstream

In JDBC ........................ imports all Java classes concerned with database connectivity. A) javax.sql.* B) java.mysql.* C) java.sql.* D) com.*

Description : In JDBC ........................ imports all Java classes concerned with database connectivity. A) javax.sql.* B) java.mysql.* C) java.sql.* D) com.*

Last Answer : C) java.sql.*

Inner classes are A) anonymous classes B) nested classes C) sub classe

Description : Inner classes are A) anonymous classes B) nested classes C) sub classe

Last Answer : B) nested classes

All java classes are derived from A) java.lang.Class B) java.util.Name C) java.lang.Object D) java.awt.Window

Description : All java classes are derived from A) java.lang.Class B) java.util.Name C) java.lang.Object D) java.awt.Window

Last Answer : D) java.awt.Window

…………. Is the process of creating new classes, called derived classes from existing classes called base class. A) Inheritance B) Encapsulation C) Polymorphism D) Overloading

Description : …………. Is the process of creating new classes, called derived classes from existing classes called base class. A) Inheritance B) Encapsulation C) Polymorphism D) Overloading

Last Answer : A) Inheritance

A ………………. Is a class whose instances themselves are classes. A) Subclass B) Abstract Class C) Meta Class D) Object Class

Description : A ………………. Is a class whose instances themselves are classes. A) Subclass B) Abstract Class C) Meta Class D) Object Class

Last Answer : C) Meta Class

The friend functions are used in situations where A) We want to exchange data between classes B) We want to have access to unrelated classes C) Dynamic binding is required D) We want to create versatile overloaded operators.

Description : The friend functions are used in situations where A) We want to exchange data between classes B) We want to have access to unrelated classes C) Dynamic binding is required D) We want to create versatile overloaded operators.

Last Answer : A) We want to exchange data between classes

…………. Refer to the names of variables, functions, arrays, classes etc. created by the programmer. A) Keywords B) Identifiers C) Constraints D) Strings

Description : …………. Refer to the names of variables, functions, arrays, classes etc. created by the programmer. A) Keywords B) Identifiers C) Constraints D) Strings

Last Answer : B) Identifiers

C++ has the name ………………….. before it was changed to C++. A) Improved C B) Integrated C C) C with classes D) C with Simula

Description : C++ has the name ………………….. before it was changed to C++. A) Improved C B) Integrated C C) C with classes D) C with Simula

Last Answer : C) C with classes

Equivalence partitioning is a .................. method that divides the input domain of a program into classes of data from which test cases can be derived. (A) White-box testing (B) Black-box testing (C) Orthogonal array testing (D) Stress testing

Description : Equivalence partitioning is a .................. method that divides the input domain of a program into classes of data from which test cases can be derived. (A) White-box testing (B) Black-box testing (C) Orthogonal array testing (D) Stress testing

Last Answer : (B) Black-box testing

.................. allows to create classes which are derived from other classes, so that they automatically include some of its "parent's" members, plus its own members. (A) Overloading (B) Inheritance (C) Polymorphism (D) Encapsulation

Description : .................. allows to create classes which are derived from other classes, so that they automatically include some of its "parent's" members, plus its own members. (A) Overloading (B) Inheritance (C) Polymorphism (D) Encapsulation 

Last Answer : (B) Inheritance

All the classes necessary for windows programming are available in the module : (A) win.txt (B) win.main (C) win.std (D) MFC

Description : All the classes necessary for windows programming are available in the module : (A) win.txt (B) win.main (C) win.std (D) MFC

Last Answer : (A) win.txt

It is possible to define a class within a class termed as nested class. There are ............ types of nested classes. (A) 2 (B) 3 (C) 4 (D) 5

Description : It is possible to define a class within a class termed as nested class. There are ............ types of nested classes. (A) 2 (B) 3 (C) 4 (D) 5

Last Answer : Answer: A, C

How many different equivalence relations with exactly three different equivalence classes are there on a set with five elements? (A) 10 (B) 15 (C) 25 (D) 30

Description : How many different equivalence relations with exactly three different equivalence classes are there on a set with five elements? (A) 10 (B) 15 (C) 25 (D) 30

Last Answer : (C) 25

Which of the following statement(s) is/are TRUE with regard to software testing? I. Regression testing technique ensures that the software product runs correctly after the changes during maintenance. II. Equivalence partitioning is a white-box testing technique that divides the input domain of a program into classes of data from which test cases can be derived. (1) only I (2) only II (3) both I and II (4) neither I nor II

Description : Which of the following statement(s) is/are TRUE with regard to software testing? I. Regression testing technique ensures that the software product runs correctly after the changes during maintenance. II. Equivalence partitioning is a ... (1) only I (2) only II (3) both I and II (4) neither I nor II

Last Answer : (1) only I 

Which of the following statement(s) with regard to an abstract class in JAVA is/are TRUE? I. An abstract class is one that is not used to create objects. II. An abstract class is designed only to act as a base class to be inherited by other classes. (1) Only l (2) Only II (3) Neither I nor II (4) Both l and II

Description : Which of the following statement(s) with regard to an abstract class in JAVA is/are TRUE? I. An abstract class is one that is not used to create objects. II. An abstract class is designed only to act as a base class ... by other classes. (1) Only l (2) Only II (3) Neither I nor II (4) Both l and II

Last Answer : Both l and II

Which of the following storage classes have global visibility in C/C++? (1) Auto (2) Extern (3) Static (4) Register

Description : Which of the following storage classes have global visibility in C/C++? (1) Auto (2) Extern (3) Static (4) Register

Last Answer : Answer: 2

The Unix Kernel maintains two key data structures related to processes, the process table and the user structure. Which of following information is not the part of user structure? (A) File descriptor table (B) System call state (C) Scheduling parameters (D) Kernel stack

Description : The Unix Kernel maintains two key data structures related to processes, the process table and the user structure. Which of following information is not the part of user structure? (A) File descriptor table (B) System call state (C) Scheduling parameters (D) Kernel stack

Last Answer : (C) Scheduling parameters

Consider a system with twelve magnetic tape drives and three processes P1, P2 and P3. Process P1 requires maximum ten tape drives, process P2 may need as many as four tape drives and P3 may need upto nine tape drives. Suppose that at time t1, process P1 is holding five tape drives, process P2 is holding two tape drives and process P3 is holding three tape drives. At time t1, system is in: (A) safe state (B) unsafe state (C) deadlocked state (D) starvation state

Description : Consider a system with twelve magnetic tape drives and three processes P1, P2 and P3. Process P1 requires maximum ten tape drives, process P2 may need as many as four tape drives and P3 may need upto nine ... , system is in: (A) safe state (B) unsafe state (C) deadlocked state (D) starvation state

Last Answer : Answer: B

What is a stack? State it’s application.

Description : What is a stack? State it’s application.

Last Answer : A: It is a linear data structure which follows the LIFO (Last In First out) pattern. Stack memory is used in recursion. Application: It can be used for reversing strings, for evaluating postfix expressions.

State true of false. i) Public can only be assigned to class ii) Protected protects a statement iii) Protected method is never accessible outside the package iv) Friendly variable may be accessible outside class A) i-true, ii-true, iii-false, iv-true B) i-true, ii-false, iii-true, iv-false C) i-false, ii-true, iii-false, iv-false D) i-true, ii-false, iii-false, iv-true

Description : State true of false. i) Public can only be assigned to class ii) Protected protects a statement iii) Protected method is never accessible outside the package iv) Friendly variable may be accessible outside class A) i- ... -false, ii-true, iii-false, iv-false D) i-true, ii-false, iii-false, iv-true

Last Answer : C) i-false, ii-true, iii-false, iv-false

State true or false. i) comparisons precede logical operations in java ii) assignment operations succeed increment operations iii) arithmetic operations succeed comparisons iv) x precede + A) i-true, ii-true, iii-false, iv-true B) i-true, ii-false, iii-true, iv-false C) i-false, ii-true, iii-false, iv-false D) i-true, ii-false, iii-false, iv-true

Description : State true or false. i) comparisons precede logical operations in java ii) assignment operations succeed increment operations iii) arithmetic operations succeed comparisons iv) x precede + A) i-true, ii-true, iii-false, ... false, ii-true, iii-false, iv-false D) i-true, ii-false, iii-false, iv-true

Last Answer : A) i-true, ii-true, iii-false, iv-true

State whether true or false. i) init( ) of servlet is called after a client request comes in ii) Servlets are ultimately converted into JSP A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Description : State whether true or false. i) init( ) of servlet is called after a client request comes in ii) Servlets are ultimately converted into JSP A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Last Answer : A) i-false, ii-false

State true or false for the following statements in Java. i) Java beans slow down software development process. ii) Java Servlets do not have built in multithreading feature. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Description : State true or false for the following statements in Java. i) Java beans slow down software development process. ii) Java Servlets do not have built in multithreading feature. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Last Answer : A) i-false, ii-false

State true or false for Java Program. i) Data members of an interface are by default final ii) An abstract class has implementations of all methods defined inside it. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Description : State true or false for Java Program. i) Data members of an interface are by default final ii) An abstract class has implementations of all methods defined inside it. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Last Answer : C) i-true, ii-false

State true or false for Java Program. i) All class variables are instance variables ii) All protected methods are friendly methods A) i-false, ii-false B) i-false, ii-true

Description : State true or false for Java Program. i) All class variables are instance variables ii) All protected methods are friendly methods A) i-false, ii-false B) i-false, ii-true

Last Answer : B) i-false, ii-true

State true of false. i) AWT is an extended version of swing ii) Paint( ) of Applet class cannot be overridden A) i-false, ii-false B) i-false,ii-true C) i-true, ii-false D) i-true, ii-true

Description : State true of false. i) AWT is an extended version of swing ii) Paint( ) of Applet class cannot be overridden A) i-false, ii-false B) i-false,ii-true C) i-true, ii-false D) i-true, ii-true

Last Answer : A) i-false, ii-false

State weather the following statement is true or false for EJB. 1. EJB exists in the middle-tier 2. EJB specifies an execution environment 3. EJB supports transaction processing A) 1-true, 2. true, 3. true B) 1- true, 2. false, 3. true C) 1- false, 2- false, 3- false D) 1-true, 2-true, 3-false

Description : State weather the following statement is true or false for EJB. 1. EJB exists in the middle-tier 2. EJB specifies an execution environment 3. EJB supports transaction processing A) 1-true, 2. true, 3. true B) 1- ... false, 3. true C) 1- false, 2- false, 3- false D) 1-true, 2-true, 3-false

Last Answer : A) 1-true, 2. true, 3. true

State True or False. i) While overloading operators new operator can be overloaded. ii) The binary operator such as +, -, * and must explicitly return a value. A) True, True B) True, False C) False, True D) False, False

Description : State True or False. i) While overloading operators new operator can be overloaded. ii) The binary operator such as +, -, * and must explicitly return a value. A) True, True B) True, False C) False, True D) False, False

Last Answer : C) False, True

State True or False i) A destructor never takes any argument nor does it return any value. ii) It releases memory space for future use. A) True, True B) True, False C) False, True D) False, False

Description : State True or False i) A destructor never takes any argument nor does it return any value. ii) It releases memory space for future use. A) True, True B) True, False C) False, True D) False, False

Last Answer : A) True, True

State True or False. i) A satic function can have access to only other static members (functions or variables) declared in the same class. ii) A static member function can be called using the class name (instead of its objects) A) True, True B) True, False C) False, True D) False, False

Description : State True or False. i) A satic function can have access to only other static members (functions or variables) declared in the same class. ii) A static member function can be called using the class name (instead of its objects) A) True, True B) True, False C) False, True D) False, False

Last Answer : B) True, False

State true of false. i) We cannot make the function inline by defining a function outside the class. ii) A member function can be called by using its name inside another member function of the same class, this is known as nesting of member function. A) True, True B) True, False C) False, True D) False, False

Description : State true of false. i) We cannot make the function inline by defining a function outside the class. ii) A member function can be called by using its name inside another member function of the same class, this ... of member function. A) True, True B) True, False C) False, True D) False, False

Last Answer : C) False, True

State whether the following statement is true. i) A macro virus is platform independent. ii) Macro viruses infect documents, not executable portions of code. A) i-only B) ii-only C) Both i and ii D) Non i and ii

Description : State whether the following statement is true. i) A macro virus is platform independent. ii) Macro viruses infect documents, not executable portions of code. A) i-only B) ii-only C) Both i and ii D) Non i and ii

Last Answer : D) Non i and ii

State whether true of false. i) A worm mails a copy of itself to other systems. ii) A worm executes a copy of itself on another system. A) True, False B) False, True C) True, True D) False, False

Description : State whether true of false. i) A worm mails a copy of itself to other systems. ii) A worm executes a copy of itself on another system. A) True, False B) False, True C) True, True D) False, False

Last Answer : C) True, True

State true of false. i) With paging, each process is divided into relatively small, fixed-size pages. ii) Segmentation provides for the use of pieces of varying size. A) Partition management B) Memory management C) Disk management D) All of the above

Description : State true of false. i) With paging, each process is divided into relatively small, fixed-size pages. ii) Segmentation provides for the use of pieces of varying size. A) Partition management B) Memory management C) Disk management D) All of the above

Last Answer : B) Memory management

State true or false. i) Unix, support multiple user process but only support one thread per process. ii) A java run time environment is an example of a system of one process with multiple threads. A) True, False B) True, True C) False, True D) False, False

Description : State true or false. i) Unix, support multiple user process but only support one thread per process. ii) A java run time environment is an example of a system of one process with multiple threads. A) True, False B) True, True C) False, True D) False, False

Last Answer : B) True, True