Given the for loop construct: for ( expr1 ; expr2 ; expr3 ) { statement; } Which two statements are true?

The correct answer is A. This is not the only valid for loop construct; there exits another form of for loop constructor. B. The expression expr1 is optional. A is true because there are two types of for loop in Java. Classic and Enhanced. B is true because we can run code like for( ; expr2 ; expr3). C is false because expr2 is evaluated BEFORE each iteration. D is false because we can run code like for(expr1; expr2; ).

Using Operators and Decision Constructs

Question

Given the for loop construct:

for ( expr1 ; expr2 ; expr3 ) { statement; } Which two statements are true?

Options

AThis is not the only valid for loop construct; there exits another form of for loop constructor.
BThe expression expr1 is optional.
CWhen expr2 evaluates to false, the loop terminates.
DThe expression expr3 must be present.

How the community answered

(37 responses)

A
81% (30)
C
14% (5)
D
5% (2)

Explanation

A is true because there are two types of for loop in Java. Classic and Enhanced. B is true because we can run code like for( ; expr2 ; expr3). C is false because expr2 is evaluated BEFORE each iteration. D is false because we can run code like for(expr1; expr2; ).

Topics

#for loop#enhanced for loop#loop expressions#iteration

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