AP CSA Primitive Types Practice

Front

What is a variable in programming?

Back

A variable is a named storage location that holds a value.

Front

Which of the following options are primitive data types in Java? integer, boolean, double, String

Back

integer, boolean, double

Front

What is the syntax for declaring a variable in Java?

Back

int myVariable;

Front

What is the difference between int and double data types?

Back

int is used for whole numbers while double is used for decimal numbers.

Front

What is the purpose of a variable?

Back

To store and manipulate data in a program.

Front

Consider the following code segment.
System.out.println("W");
System.out.println("X");
System.out.print("Y");
System.out.print("Z");
What is printed as a result of executing the code segment?

Back

W
X
YZ

Front

Consider the following code segment:
int x = 10;
int y = 20;
/* missing code */
System.out.print(top / bottom);
Which of the following replacements for /* missing code */ will cause an ArithmeticException to occur?
I. int top = x - y;int bottom = y - x;
II.int top = 2 * x;int bottom = y - top;
III. int top = x + y;int bottom = 2 * top;

Back

II. only

Front

Consider the following code segment:
String str = "AP";
str += "CS " + 1 + 2;
System.out.println(str);
What is printed as a result of executing the code segment?

Back

APCS 12

Front

If x = 4, x++ =?

Back

5

Front

In integer division, what happens to the decimal, such as int a = 25/10, where the answer would be 2.5?

Back

the decimal is dropped