AP CSA Unit One Review

Front

Which of the following answer choices display the correct format for a Java main class?
Options:
public static void main(String [] args),
public void main static(String [] args),
public static main static(String [] args);
public static void main static(Int [] args),
public static main static(String {} args);

Back

public static void main(String [] args)

Front

Which of the following answer choices shows the output of the following snippet of code?
System.out.print(“Welcome back”);
System.out.println(“IA!”);
System.out.println(“Hope you had a great summer!”);

Back

Welcome backIA
Hope you had a great summer!

Front

Which of the following is NOT a Java Primitive Data Type: String, double, integer, char, boolean?

Back

String

Front

True or False: This code will run with no errors
public class QuizOne
{
public static void main(String[]args)
{
System.out.println(“Today is Monday”)
}
}

Back

False

Front

Which of the following lines of code will print “Hello IA” to the console: System.out.print(“Hello IA”), System.out.println(“Hello IA”);, System.outprint(Hello IA);, System.out.println(Hello IA)

Back

System.out.println(“Hello IA”);

Front

Assuming this code has a main class and runs with no errors, what will be the output on the console:
double z = 6.7;
int x = 4;
int y = 8;
z = x/y;
System.out.println(z);

Back

0.0

Front

What is the primary use of the Scanner class in Java?

Back

To read input of primitive data types and strings

Front

How do you correctly create a Scanner object in Java? Options: Scanner myObj = new Scanner(); Scanner myObj = new Scanner(java.util.Scanner); Scanner myObj = new Scanner(System.out); Scanner myObj = new Scanner(System.in); Scanner myObj = new Scanner(InputStream)

Back

Scanner myObj = new Scanner(System.in)

Front

Which method is used to read a string value using the Scanner class? Options: nextLine(), nextInt(), nextString(), nextLn(), nextStr()

Back

nextLine()

Front

What does the method nextLine() do in the Scanner class?

Back

Reads a String value.