Programming Tutorials

How to use and access the inner class in java

By: Saravanan  

In this Tutorial we are going to see how to use a named inner class, how to access inner class in Java.

//A named inner class is used.
// This is used to show that it can access non-local variables in the enclosing object.

public class InnerExample
{
static String msg= "Welcome";

public static void main(String[] arg)
{
class InnerClass {
public void doWork()
{
System.out.println(msg);
}
}
InnerClass i = new InnerClass();
i.doWork();
}
}

// Access inner class from outside 

public class InnerExample2
{
public static void main(String[] args)
{
OuterClass outer = new OuterClass();
outer.new InnerClass().welcome();
}
}

class OuterClass
{
public class InnerClass
{
public void welcome()
{
System.out.println("Welcome from InnerClass()");
}
}
}


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