Constructor.Getters and setters and how to generate them

Constructor is a special code block which is used to initialized all necessary states of class.
Main things that you should know about constructor:

• It has to have the same name as class
• It doesn't have a return type.
• It is a first thing that runs when you initialize an object
• In Java every class has a constructor even if you don't specify it

How to generate:
Eclipse:  Source>Generate Constructor using Fields
Idea: Code>Generate>Constructor

Example:
public class BankAccount {
String accountEmail;   //variable
public BankAccount(){ //java constructor
}

Getters - set values to instance variables. Has void type and return nothing
Setters - retrieve values and expose variables. Has type of variable and return variable.

How to generate getters and setters:
Eclipse:  Source>Generate Gettersa and Setters
Idea: Code>Generate>Getters and Setters

Example:
String accountEmail;   //variable  //getter 
public String getAccountEmail() {
return accountEmail;
}

public void setAccountEmail(String accountEmail) { //setter
this.accountEmail = accountEmail;
}