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Java Programming : Language Basics : True or False


Answer the following questions about basics of the Java programming language. These include concepts like operators, variables, declarations, basic language structures such as if, for, switch, etc.

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Multiple choice

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1.

Variables declared inside a for loop are limited in scope to the loop.

  True

  False

 

2.

The expression (y >= z && a == b) is evaluated by first evaluating the expression y >= z, and then evaluating a == b.

  True

  False

 

3.

The "switch" selection structure must end with the default case.

  True

  False

 

4.

For the expression (y >= z && a == b) to be true, at least one of (y >= z) and (a == b) must be true.

  True

  False

 

5.

Objects of a super class can always be assigned to a subclass reference.

  True

  False

 

6.

A break statement must always be present in the default case of a "switch" selection structure.

  True

  False

 

7.

consider the statement "x = (a > b) ? a : b"; then the value of x is 27, if a = 18 and b = 27.

  True

  False

 


 
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