out.java

Java语言

class Out
{
	private String name = "out.name";
	void print()
	{
		final String work = "out.local.work";//若不是final的则不能被Animal 使用.
		int age=10;
		class Animal
		//定义一个局部内部类.只能在print()方法中使用.
//局部类中不能使用外部的非final的局部变量.全局的可以.
		{
			final static int m=9;
			public void eat()
			{
				System.out.println(work);//ok
				//age=20;error not final
				System.out.println(name);//ok.
			}
		}
		Animal local = new Animal();
		local.eat();
	}
        public static void main(String[] args){
		Out out1=new Out();
                out1.print();
	}
}