Notes

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Primitive Java Data Types

boolean
char
byte
short
int
long
float
double

Non-Primitive Java Data Types

String
Array
class __________________________

Constructors: methods with the same name as the class it is in. It is a speacial methods used to initialize objects. Here is a constructor that takes parameters inside of a class called ThreeString - Exploration Code

//constructor that takes parameters
 ThreeString(String str1, String str2, String str3)
 {
    if (validString(str1) && validString(str2) && validString(str3))
    {
       string1 = str1;
       string2 = str2;
       string3 = str3;
    }
    else
    {
       string1 = DEFAULT_STRING;
       string2 = DEFAULT_STRING;
       string3 = DEFAULT_STRING;         
    }
 }

Mutators: methods that mutate the value of a private member variable. Here the methods setString1 sets the value of a private member of the ThreeString class called string1

public boolean setString1(String str) 
 {
    boolean status = false;
    if (validString(str))
    {
       string1 = str;
       status = true;
    }
    return status;
 }

Accessors: methods that accesses and returns the value of a private member variable. Here the getString1 method acesses and returns the value of the private member string1.
```
 public String getString1()
 {
    return string1;
 }
```

Agile Methodology

The Agile methodology is a way to manage a project by breaking it up into several phases. It involves constant collaboration with stakeholders and continuous improvement at every stage.

Agile Methodology Diagram

College Board Unit Notes