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AP Computer Science Principles Chapter 2 Graded A+
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AP Computer Science Principles Chapter 2 Graded A+ What is the output of this code snippet? ```java int a = 5; int b = 3; Sln(a - b); ``` The output is `2`. How do you call a method named `calculate` from an object `calc`? Use `late();`. What happens if you don’t provid...

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  • August 28, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
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AP Computer Science Principles
Chapter 2 Graded A+

What is the output of this code snippet?




```java

int a = 5;

int b = 3;

System.out.println(a - b);

```




✔✔ The output is `2`.




How do you call a method named `calculate` from an object `calc`?




✔✔ Use `calc.calculate();`.




What happens if you don’t provide a constructor in a class?



1

, ✔✔ Java provides a default constructor that initializes objects with default values.




How can you access a private field in a class?




✔✔ Use a public getter method defined in the class.




What does the `new` keyword do in Java?




✔✔ It creates a new instance of a class.




How do you declare an `ArrayList` of `Integer` in Java?




✔✔ Use `ArrayList<Integer> list = new ArrayList<Integer>();`.




What will be printed by this code?




```java

String text = "Java";

2

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