AP CSA Unit 2 Review

AP CSA Unit 2 Review

Assessment

Flashcard

Computers

10th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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30 questions

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1.

FLASHCARD QUESTION

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

2.

FLASHCARD QUESTION

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

3.

FLASHCARD QUESTION

Front

Consider the following code segment.

String one = "ABC123";
String two = "C";
String three = "3";
System.out.println(one.indexOf(two));
System.out.println(one.indexOf(three));
System.out.println(two.indexOf(one));

What is printed when the code segment is executed?

Back

2
5
-1

4.

FLASHCARD QUESTION

Front

What is printed when the following code segment is executed?
public double calculate(double x)
{
return x + 1.5;
}
Double d1 = new Double(7.5);
System.out.println(calculate(d1));

Back

9.0

5.

FLASHCARD QUESTION

Front

Consider the following code segment, which is intended to display 6.0.

double fact1 = 1 / 2;
double fact2 = 3 * 4;
double product = fact1 * fact2;
System.out.println(product);

Which of the following best describes the error, if any, in the code segment? Options:
There are no errors and the code works as intended.

Either the numerator or the denominator of the fraction 1 / 2 should be cast as double.

The expression fact1 * fact2 should be cast as double.

The expressions 1 / 2 and 3 * 4 should both be cast as double.

The variables fact1 and fact2 should both be declared as int.

Back

Either the numerator or the denominator of the fraction 1 / 2 should be cast as double.

6.

FLASHCARD QUESTION

Front

Java has 8 primitive data types, which of the following best describes the int datatype?

Back

An int can be stored with 32 bits of memory.

7.

FLASHCARD QUESTION

Front

Is the Main() method mandatory for a Java program?

Back

No, the Main() method is not mandatory for a Java program.

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