Unit 23 - Pop Quiz

Quiz
•
Computers
•
12th Grade
•
Hard
Ambreen Mohsin
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What does the following code fragment write to the monitor?
int sum = 14;
if ( sum < 20 )
System.out.print(“Under “);
else
System.out.print(“Over “);
System.out.printIn(“the limit.”);
Under
Over
Under the limit
Over the limit
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following is FALSE about Event driven programming?
Event driven programs can be run multiple times with different outcomes based on user interactions
The flow of event driven program cannot always be known ahead of time
Event driven programs do not implement algorithms
Some portion of an event driven program may never execute while the program is still running
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Look at the following line of code.
String operator = "?" ;
switch(operator)
{
case '+':
printf("%.1lf + %.1lf = %.1lf",firstNumber, secondNumber, firstNumber+secondNumber);
break;
case '-':
printf("%.1lf - %.1lf = %.1lf",firstNumber, secondNumber, firstNumber-secondNumber);
break;
default:
printf("Error! operator is not correct");
}
Which case will be executed?
Case +
Case *
Default case
All the cases
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What role does the "break" keyword play?
exits the program
exits the construct
exits the application
exits the operating system
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
OOP organizes a software into classes and objects. What exactly are objects?
Objects are subclasses
Objects are instances of classes
Objects are data types
Objects are constructors
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
How is data abstraction achieved in Java?
By using abstract keyword
By using private and public keywords
By using extend keywords
By using string keyword
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following is a looping construct?
Switch Case
If Else
do while
JOptionPane
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