QUESTION 1 1 You can define a variable twice in a block. A true B false QUESTION

Question

QUESTION 1

1 You can define a variable twice in a block.

A

true

B

false

QUESTION 2

2 pow is a method in the ________ class.

A

Integer

B

Double

C

Math

D

System

3 To declare a constant MAX_LENGTH inside a method with value 99.98, you write ________.

A

final MAX_LENGTH = 99.98;

B

final float MAX_LENGTH = 99.98;

C

double MAX_LENGTH = 99.98;

D

final double MAX_LENGTH = 99.98;

4 The value of a variable can be changed.

A

true

B

false

5,The break keyword must be used in a switch statement; otherwise, a syntax error occurs.

true

false

Explanation / Answer

1. B. false
We can't define a variable twice in a block. We can do it in different blocks.

2. C. Math
It is a library function

3. D. final double MAX_LENGTH = 99.98;
double value is 99.98. It is not float. Final is to represent a constant.

4. A. True
It can be changed as the name says.

5. false
There isn't any necessity to use break keyword. Rest of the statements will also get executed.

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