testinnerinmethod.java

java程序设计源代码

class TestInnerInMethod 
{
	public static void main(String[] args) 
	{
		Object obj = new Outer().makeTheInner(47);
		System.out.println("Hello World!" + obj.toString() );
	}
}

class Outer
{
	private int size = 5;
	public Object makeTheInner( int localVar )
	{
		final int finalLocalVar = 99;
		class Inner  {
			public String toString() {
				return ( " InnerSize: " + size + 
					// " localVar: " + localVar +   // Error! 
					" finalLocalVar: " + finalLocalVar
				);
			}
		}
		return new Inner();
	}
}