22 Questions
What is the purpose of adding braces {} after an if statement?
To force the else clause to match the correct if clause
What type of error is caused by adding a semicolon at the end of an if clause?
Logic error
Which logical operator is used to negate a boolean expression?
!
Given the expression (age > 18) && (weight > 140), what would be the result if age is 24 and weight is 140?
false
Which logical operator is used to represent the exclusive or operation?
^
What is the purpose of using the next-line block style for if statements?
To improve code readability
What is a requirement for the switch-expression in a switch statement?
Must be of type char, byte, short, or int
When comparing a case value to the switch-expression, what is required about the data types?
They must match the data type of the switch-expression
In a switch statement, what happens if the break statement is not included in a case?
The next case will be executed
What is the purpose of the default case in a switch statement?
To execute when none of the specified cases matches
Which of the following is NOT a valid data type for the switch-expression in a switch statement?
boolean
What are the resulting statements in a case statement executed based on in a switch statement?
When the value in the case statement matches the switch-expression value
What is the default value of a boolean data type in Java?
'false'
In Java, what is the default size of a double data type?
8 bytes
What is the output of the program execution shown in the code snippet?
'The area for the circle of radius 20 is 1256.636'
What will be the value of 'area' if 'radius' is assigned a value of 10 in the program execution?
62.8309
Which statement is correct regarding Java input and output devices?
Java uses System.in for standard input and System.out for standard output.
What is the default value of a char data type in Java?
'\u0000'
If 'radius' in the program execution is set to 0, what will be the value of 'area'?
-0.0
'int' data type in Java occupies how many bytes by default?
4 bytes
'float' data type in Java occupies how many bytes by default?
-4 bytes
'long' data type in Java occupies how many bytes by default?
-8 bytes
Explore the lecture plan for Object Oriented Programming Techniques focusing on Elementary Programming, Selections, and Mathematical Functions in Java programming language. Contact Syed Muhammad Hassan at [email protected] for more information.
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