Java inner classes 👩‍🏫

Published: 13 June 2020
on channel: Bro Code

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1.3k

java inner class

#java #inner #classes

public class Main {

public static void main(String[] args) {

/* inner class = A class inside of another class.
useful if a class should be limited in scope.
usually private, but not necessary
helps group classes that belong together
extremely useful for listeners for specific events
precursor for anonymous inner classes
*/
Outside out = new Outside();
Outside.Inside in = out.new Inside();
in.Greeting();
}
//**********************************************************
public class Outside {

String x = "Hello ";

public class Inside{

String y = "World!";

public void Greeting()
{
System.out.println(x+y);
}
}
}

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