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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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1.

The == operator can be used to compare two String objects. The result is always true if the two strings are identical.

  True

  False

 

2.

An individual array element from an array of type int, when passed to a method is passed by value.

  True

  False

 

3.

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

  True

  False

 

4.

Whenever the "&&" operator is used, such as in:
exp1 && exp2
where exp1 and exp2 are boolean expressions, both the boolean expressions are not always evaluated.

  True

  False

 

5.

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

  True

  False

 

6.

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

  True

  False

 

7.

The modulus operator (%) in Java can be used only with variables of integer type.

  True

  False

 


 
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