QUESTION 1 1 You can define a variable twice in a block. A true B false QUESTION
ID: 3902411 • Letter: Q
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.