Question
part 1-How many iterations will the following loop generate: for (int i = 0; i < 10; i++) { System.out.println( i is + i
part 1-How many iterations will the following loop generate:
for (int i = 0; i < 10; i++) { System.out.println( "i is " + i ); break; }
Infinite number of times. | ||
0 (zero) | ||
1 | ||
10 |
part 2-Consider the following two code snippets (A and B):
A:
public static void main(String[] args ) { int i = 0; for (i = 0; i < 10; i++) { System.out.println( "i is " + i ); } }
B:
public static void main(String[] args ) { for (int i = 0; i < 10; i++) { System.out.println( "i is " + i ); } }
In which snippet, A or B, variable i has a greater ("wider") scope?
Variable i has no scope. | ||
A | ||
Same scope in both A and B. | ||
B |
part 3 With a post-test loop (do-while) you could end up with ZERO iterations (loop body statements will never get executed)?
Yes
No
part 4. When using an if/else if structure, it is mandatory to have an else block. Yes or no?
Yes
No
part 5. An else block is mandatory after an if. Yes or no?
Yes
No
QUESTION 6. When using an if/else if structure, we can only use one else if block. Yes or no?
Yes
No
QUESTION 7. What is the output of the following code?
int age = 30; if ( age > 33 ) System.out.print( 1 ); else System.out.print( 2 ); System.out.println( 3 );
Pay attention to syntax and the difference between print() and println() methods.
1 | ||
23 | ||
2 | ||
12 |
QUESTION 8.Is this if statement:
if (j >= 0 && (j < 10 || j >= 10))
equivalent to:
if (j >= 0)
?
Yes
No
QUESTION 9. How many iterations will the following for loop generate?
for (int i = 0; i < 10; i++) { System.out.println( "i is " + i ); i--; }
10 | ||
Infinite number of times. | ||
9 | ||
0 (zero) |
QUESTION 10. Which of the following expresses the condition a is less than b and c. in Java?
a < b && c | ||
a < b && a < c | ||
a < b || a < c | ||
a < b < c |
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