package com.hanqi;public class Car{//品牌private String pinP;// 讀public String getPinP() {return pinP;}//寫public void setPinP(String pinP) {System.out.println("車的品牌設置為" + pinP);this.pinP = pinP;}//狀態private String ZhuangT = "靜止";public String getZhuangT() {return ZhuangT;}//油量private double youL = 0;public double getYouL() {return youL;}//油箱private double youX;public double getYouX() {return youX;}public void setYouX(double youX) {this.youX = youX;}//一次加滿 方法的重載public void jiaYou(){System.out.println("一次加滿");double yjyl = this.youX - this.youL;jiaYou(yjyl);}//加油public void jiaYou(double youl){//油箱容量大于0if (youX <= 0){System.out.println("忘裝油箱了");return;}//加油量大于0else if (youl < 0){System.out.println("不要偷我的油");return;}//只有靜止狀態下才能加else if (!ZhuangT.equals("靜止")){System.out.println("車熄火了再加油");return;}//不能超過油箱容量else if (this.youL + youl > this.youX){System.out.println("油箱已經加滿了，不要再加了");double syyl = this.youL;this.youL = this.youX;System.out.println("這次加了" + (this.youX - syyl) + "升油");}//剩余油量不能小于0else{this.youL += youl;System.out.println("這次加了" + youl + "升油");}}public void faDong()//無參數也無返回值的方法 {if (this.youL<=0){System.out.println("沒油了，請先加油");}else if(!this.ZhuangT.equals("靜止")){System.out.println("車已經發動了");}else{this.ZhuangT = "發動";System.out.println("車發動了");}}private double zongLC;public double getZongLC() {return zongLC;}//行駛public void xingS(double lic,double youh)//lic里程youh油耗 {//車的狀態是發動if(!this.ZhuangT.equals("發動")){System.out.println("請發動汽車"); }else{//行駛//double zyh = lic * youh / 100;double lc = this.youL * 100 / youh;if(lc<lic){System.out.println("最多行駛"+lc+"公里");this.zongLC +=lc;this.youL = 0;}else{System.out.println("行駛了"+ lic +"公里");this.zongLC += lic;this.youL -= lic * youh / 100;}this.ZhuangT = "靜止";}//計算總油耗，判斷是否沒有油了 }/*public Car(){System.out.println("調用了構造方法");}*///重載public Car(String pinP){System.out.println("實例化車的品牌為"+pinP);this.pinP=pinP;}public static void main(String[] args) {Car mycar = new Car("寶馬");//默認構造方法//mycar.setPinP("寶馬");mycar.xingS(100, 10);mycar.setYouX(40);mycar.jiaYou(20);System.out.println("車的品牌是"+mycar.pinP+",車的油量是" + mycar.getYouL() + "升，車的狀態是" + mycar.getZhuangT());mycar.faDong();mycar.xingS(300, 10);mycar.jiaYou(10);System.out.println("車的油量是" + mycar.getYouL() + "升，車的狀態是" + mycar.getZhuangT());mycar.jiaYou();System.out.println("車的油量是" + mycar.getYouL() + "升，車的狀態是" + mycar.getZhuangT());} }

測試結果：

轉載于:https://www.cnblogs.com/0927wyj/p/5037187.html

總結

以上是生活随笔為你收集整理的12.10课堂学习----实例化、构造方法案例的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。