package com.imooc;public class Telphone {private float screen;private float cpu;private float mem;public float getScreen(){return screen;}public void setScreen(float newScreen){screen = newScreen;}public Telphone(){System.out.println("無參的構造方法執(zhí)行了！");}public Telphone(float newScreen, float newCpu, float newMem){//構造方法確保賦給成員的變量的值是一個合理值if(newScreen<3.5f){System.out.println("您輸入的參數(shù)有問題，自動賦值3.5");screen = 3.5f;}else{screen = newScreen;}cpu = newCpu;mem = newMem;System.out.println("有參的構造方法執(zhí)行了！");} } package com.imooc;public class InitialTelphone {public static void main(String[] args) {// TODO Auto-generated method stub//通過無參的構造方法可以創(chuàng)建對象Telphone phone1 = new Telphone();//通過有參的構造方法可以創(chuàng)建對象，并給對象的實例變量賦初值Telphone phone2 = new Telphone(1.5f, 1.4f, 2.2f);//通過setter方法修改變量的值phone1.setScreen(5.0f);//通過getter方法獲取變量的值System.out.println("screen:" + phone1.getScreen()); }}

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轉載于:https://www.cnblogs.com/100thMountain/p/5374591.html

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