Java Interview Guide : 200+ Interview Questions and Answers - Simple Puzzles on conditions and loops

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it recommended to use blocks around if statements even if there is only one statement?
To reduce the number of lines in the code
To make the code look more complex
To ensure future additions are part of the if block
To make the code run faster
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main difference between assignment and comparison operators in if statements?
Comparison operators are faster than assignment operators
Assignment operators assign values, comparison operators compare values
Comparison operators are used to assign values
Assignment operators are used for mathematical operations
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens in a switch statement when there are no break statements?
All cases are executed until a break is found
The program crashes
The default case is executed immediately
Only the matching case is executed
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Can a switch statement in Java be used with strings?
No, it can only be used with characters
Yes, in all versions of Java
No, it can only be used with integers
Yes, but only in the latest versions of Java
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an enhanced for loop primarily used for?
Switching between different cases
Handling exceptions
Performing complex mathematical calculations
Looping through arrays and lists
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a break statement do in a loop?
Continues to the next iteration
Exits the innermost loop
Restarts the loop
Skips the current iteration
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you break out of an outer loop using a break statement?
By using a goto statement
By using a continue statement
By using a labeled break
By using a return statement
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