package test;
/** * 一个类与某个类结合的很紧密,并且内部类的类名不会被其它类可见和调用,也不会产生命名冲突== * */
public class InneryClass { private int tt; public InneryClass(int tt){ Square s = new Square(tt); this.tt = s.t; } class Square { public int t; public Square(int t){ this.t = t*t; } } public static void main(String[] args) { InneryClass s = new InneryClass(5); System.out.println(s.tt); }
}
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