System.out.print and System.out.println Quiz for AP Computer Science A

💡 Quick Study Guide

• 📝 System.out.print(argument): This method prints the specified `argument` to the console and does NOT advance the cursor to the next line. Subsequent output will continue on the same line.
• ➡️ System.out.println(argument): This method prints the specified `argument` to the console and then moves the cursor to the beginning of the next line. Subsequent output will appear on a new line.
• 🔄 Empty println(): Calling System.out.println(); (with no arguments) will simply print a blank line to the console.
• 🔗 String Concatenation: The `+` operator is commonly used within both `print()` and `println()` to combine multiple strings, variables, or expressions into a single output string.
• 🚫 Escape Sequences: The `\n` (newline) escape sequence can be embedded within a string in a `print()` statement to force a line break, mimicking part of `println()`'s behavior.

🧠 Practice Quiz

Choose the best option for each question based on the provided Java code snippets.

1. What is the output of the following Java code?

   System.out.print("Hello");
   System.out.println("World");
   System.out.print("!");

   A) Hello World!

   B) Hello
   World
   !

   C) HelloWorld!

   D) Hello World
   !

2. Consider the following code:

   System.out.println("Java");
   System.out.print("is");
   System.out.println("fun!");

   What will be printed to the console?

   A) Java
   isfun!

   B) Java is fun!

   C) Java
   is
   fun!

   D) Javasfun!

3. Which of the following lines of code will produce a blank line on the console?

   A) System.out.print("\n");

   B) System.out.println();

   C) System.out.print("");

   D) Both A and B

4. What is the output of this code snippet?

   int x = 10;
   System.out.print("Value: " + x);
   System.out.println(" -- End");

   A) Value: 10 -- End

   B) Value: 10
   -- End

   C) Value: 10
   -- End

   D) Value: x -- End

5. Given the code:

   System.out.println("First");
   System.out.print("Second");
   System.out.println("Third");
   System.out.print("Fourth");

   How many lines of output will there be in total?

   A) 2

   B) 3

   C) 4

   D) 5

6. Which statement is true regarding `System.out.print`?

   A) It automatically adds a newline character at the end of its output.

   B) It is primarily used for debugging and should not be used in final applications.

   C) It prints its argument to the console without advancing to the next line.

   D) It can only print String values, not primitive data types.

7. What is the output of the following code?

   System.out.print("A");
   System.out.print("B\nC");
   System.out.println("D");

   A) ABCD

   B) AB
   CD

   C) A
   B
   C
   D

   D) ABC
   D