Java Chapter 08

1.クラスパス

// WhatYourName.java 파일
class AAA {}
class ZZZ {}
class WhatYourName {
    // 현재 디렉토리에서 AAA Class 파일을 찾습니다.
    AAA aaa = new AAA();
}

2.パッケージの理解

package com.wxfx.smart;
public class Circle {
      double rad;
      final double PI;

      public Circle(double r) { . . . }
      public double getArea() { . . . }
}

package com.fxmx.simple;
public class Circle { 
      double rad;
      final double PI;
    
      public Circle(double r) { . . . }
      public double getPerimeter() { . . . }
}

com.wxfx.smart.Circle c1 = new com.wxfx.smart.Circle(3.5);
com.fxmx.simple.Circle c2 = new com.fxmx.simple.Circle(5.5);

リファレンス