嗨,那裏我創建了一個類來運行另一個Test類,但是我遇到了一些問題。 我已經宣佈agePremium和ticketPremium爲私人雙打。我後來在2種方法中分別使用它們來計算溢價。但是,當它到達的地方,我想運用互聯網計算的變量在另一個計算這裏Java:方法返回問題
/*
public double premium() {
if (ticket <4){
return ((BASE_PREMIUM*value) * agePremium) * ticketPremium;
}
else {
System.out.println("Sorry, you have too many tickets !!");
return 0;
}
}
*/
它不會從我的方法讀出的值的部分,而是讀取1從聲明和初始化。
private double agePremium = 1; 私人雙人門票= 1;
它將它們相乘。
我該如何讓他們將他們鏈接到對方,並用新值替換1並乘以。由於
import java.util.Scanner;
public class Driver {
private int age;
private int ticket;
private double value;
final double BASE_PREMIUM=0.05;
private double agePremium =1;
private double ticketPremium =1;
Scanner scanner = new Scanner(System.in);
public void read() {
System.out.println("Driver’s Age?");
age = scanner.nextInt();
System.out.println("Number of Tickets?");
ticket = scanner.nextInt();
System.out.println("Value of Car?");
value = scanner.nextDouble();
}
public double premium() {
if (ticket <4){
return ((BASE_PREMIUM*value)*agePremium)*ticketPremium;
}
else {
System.out.println("Sorry, you have too many tickets !!");
return 0;
}
}
public void premiumAge() {
if (age > 29) {
agePremium += 0;
}
else if (age <= 29 && age >= 25) {
agePremium += 0.10;
}
else {
agePremium += 0.15;
}
}
public void premiumTicket() {
switch (ticket) {
case '1':
ticketPremium += 0.1;
break;
case '2':
ticketPremium += 0.25;
break;
case '3':
ticketPremium += 0.50;
break;
case '0':
ticketPremium += 0.00;
default:
ticketPremium = 0.00;
break;
}
}
}
你有沒有打電話給你的'溢價()'和'premiumAge()'訪問?如果是這樣,那麼顯示代碼,你正在實例化'驅動程序' –
只是想知道'agePremium + = 0;'是想要做什麼? – Pshemo
@Pshemo漂亮真棒吧? –