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Java Questions Set 22:

Quiz Mode

An Error is subclass of IOException

True

False

Solution:

set of class and framework called API

True

False

Solution:

In java arrays are

objects

objects reference

none of these

Solution:

do statement executes the code of a loop at least once

True

False

Solution:

What does POJO stand for?

Plain old java object.

Planing of java object

Project on java object

Progressive java object

Solution:

What are methods in Java?

Used to initialize the state of an object

Do not have any return type

Used to represent the behavior of an object

Are invoked implicitly

Solution:

The 2 types of polymorphism are -

Compile time and Run time Polymorphism

Multiple and Multilevel Polymorphism

Execution and Compile time Polymorphism

None of these

Solution:

In character stream I/O, a single read/write operation performs _____.

Two bytes read/write at a time.

Five bytes read/ write at a time.

One byte read/write at a time.

Eight bytes read/write at a time.

Solution:

Choose the correct option for the output of this code block?

interface Vehicle {
void start();
void run();
void stop();
}
class Car implements Vehicle {
public void start() {}
}

Runtime error

Compilation error

An exception is thrown

Source code is correct

Solution:

What are two ways to prevent a class from being inherited in Java?

Declare the class as static and final

Declare the class as static and have all members as private

Declare the class as final and have all members as private

There is no way to prevent a class from being inherited

Java Questions Set 22:

An Error is subclass of IOException

Solution:

set of class and framework called API

Solution:

In java arrays are

Solution:

do statement executes the code of a loop at least once

Solution:

What does POJO stand for?

Solution:

What are methods in Java?

Solution:

The 2 types of polymorphism are -

Solution:

In character stream I/O, a single read/write operation performs _____.

Solution:

Choose the correct option for the output of this code block?

interface Vehicle {
void start();
void run();
void stop();
}
class Car implements Vehicle {
public void start() {}
}

Solution:

What are two ways to prevent a class from being inherited in Java?

Solution:

Related Question Sets:

Related Topics:

Java Questions Set 22:

An Error is subclass of IOException

Solution:

set of class and framework called API

Solution:

In java arrays are

Solution:

do statement executes the code of a loop at least once

Solution:

What does POJO stand for?

Solution:

What are methods in Java?

Solution:

The 2 types of polymorphism are -

Solution:

In character stream I/O, a single read/write operation performs _____.

Solution:

Choose the correct option for the output of this code block? interface Vehicle { void start(); void run(); void stop();}class Car implements Vehicle { public void start() {}}

Solution:

What are two ways to prevent a class from being inherited in Java?

Solution:

Related Question Sets:

Related Topics:

Choose the correct option for the output of this code block?

interface Vehicle {
void start();
void run();
void stop();
}
class Car implements Vehicle {
public void start() {}
}