AP Computer Science Principles Chapter 2 Graded A+
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Course
AP Computer Science Principles Chapter 2
Institution
AP Computer Science Principles Chapter 2
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...
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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