AP CSA (Java) 1.1-1.4 Practice Questions

What will this code segment output?

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Which code segment will print “Hello Karel” to the screen in Java?

• System.out.printLine("Hello Karel");

• print "Hello Karel";

• System.out.println("Hello Karel");

• System.println("Hello Karel");

What will this code segment output?

• This won’t print anything.

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• It will only print the first line as ***** since only one print statement can be used.

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What is the correct syntax for writing the main method in Java?

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Which of the following is a proper way to declare and initialize a variable in Java?

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Consider the following code snippet. What value of z is actually printed?

• 20

• 30

• This code gives an error.

• Nothing is printed.

What are the memory values associated with the variables x, y, and z after the code snippet below executes?

• x holds the int value 7, y holds the double value 2.0 and z holds the boolean value false.

• x holds the int value 10, y holds the double value 2.0 and z holds the boolean value true.

• This code snippet will result in a compile time error.

• x holds the int value 10, y holds the double value 2.0 and z holds the boolean value false.

Which of the following variable names follows best practices for naming a variable?

• 5apples

• someVariable

• applesnum

• numApples

What does the keyword final do?

• It’s necessary to declare a variable.

• Enables the use of println on a variable.

• It prevents variables from being altered.

• It indicates that the program has finished executing.

What will be the output of the following code snippet:

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