我得到这个错误,因为我的代码。错误:线程“主”中的异常java.lang.NullPointerException
这里是我的代码:
import java.util.*;
public class car{
public static void main(String[]args) throws java.io.IOException{
Scanner v = new Scanner(System.in);
String model = new String();
double cost=0;
System.out.print("Enter model: ");
model = System.console().readLine();
if(model == "GL"){
cost = 420000;
}
if (model == "XL"){
cost = 3398000;
}
System.out.print("Car phone: ");
char phone = (char)System.in.read();
if(phone == 'W'){
cost = cost + 40000;
}
System.out.print("Full or installment: ");
char paid = (char)System.in.read();
if(paid == 'F'){
cost = cost - 0.15 * cost;
}
System.out.print("Cost: " + cost);
}
}
,这就是结果。错误: 输入模式:异常线程 “main” 显示java.lang.NullPointerException 在car.main(car.java:10)
非常感谢!它帮助我消除了错误,我会牢记这一点。现在是组织我的代码的时候,我可以得到我想要的输出。再次谢谢你! –
没问题 - 很高兴帮助! – priboyd