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1.1. 内嵌类
1.1.1. 代码
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package javatutorials;
/**
*
* @author wanpor
*/
public class InnerClass {
public static void main(String[] args){
// 创建静态内嵌类
InnerClass.A ica = new InnerClass.A();
ica.printInfo();
// 创建非静态内嵌类
InnerClass b = new InnerClass();
InnerClass.B icb = b.new B();
icb.printInfo();
}
// 静态内嵌类
public static class A{
static void printInfo(){
System.out.println("A");
}
}
// 非静态内嵌类
public class B{
void printInfo(){
System.out.println("B");
}
}
}
1.1.2. 说明
1. 定义静态内嵌类；
2. 定义非静态内嵌类
3. 创建静态内嵌类对象
4. 创建非静态内嵌类对象
静态类不能实例化，类的成员都要是静态成员和静态方法，
非静态类一般需要实例化后才可以操作，不过接口和抽像类不能直接实例化。