repeatvalue.java

java入门经典教程 java入门经典教程 java入门经典教程

// 例2.4.3  RepeatValue.java
class OuterClass
{
	int num;
	public class InnerClass // 内部类必须被定义为public
{ 
		int num;
		void setInfo(int num)
{
			System.out.println("InnerClass setInfo(): num = "+num);
			num++;	
			this.num = num++;        // 引用内部类InnerClass的成员变量
			OuterClass.this.num = num++; //引用外部类OuterClass的成员变量
		}
	}
}
public class RepeatValue
{
	public static void main(String args[])
{
		OuterClass outer = new OuterClass();
		OuterClass.InnerClass inner = outer.new InnerClass();
		inner.setInfo(15);
		System.out.println("InnerClass: num = "+inner.num);
		System.out.println("OuterClass: num = "+outer.num);
	}
}