java中的异常线程

-7

我有一个“线程异常”错误。我创建了一个公共类student并给它三个类：学生的姓名，学生的ID和学生的GPA。当我运行代码并为student1输入信息时，这很好。但是，当我输入student2时，代码会跳过student2的名称，并为我提供学生ID和GPA。我该如何补救？java中的异常线程

output exception

下面是代码：

import java.util.Scanner; 
class Student { 

    public String name; 
    public int id; 
    public float gpa; 
} 
public class learning { 

    public static void main(String[] args) { 

     Scanner input = new Scanner(System.in); 

     Student s1 = new Student(); 
     System.out.print("Enter your name: "); 
     s1.name = input.nextLine(); 
     System.out.print("Enter your id: "); 
     s1.id = input.nextInt(); 
     System.out.print("Enter your gpa: "); 
     s1.gpa = input.nextFloat(); 


     Student s2 = new Student(); 
     System.out.print("Enter your name: "); 
     s2.name = input.nextLine(); 
     System.out.print("Enter your id: "); 
     s2.id = input.nextInt(); 
     System.out.print("Enter your gpa: "); 
     s2.gpa = input.nextFloat(); 


     Student s3 = new Student(); 
     System.out.print("Enter your name: "); 
     s3.name = input.nextLine(); 
     System.out.print("Enter your id: "); 
     s3.id = input.nextInt(); 
     System.out.print("Enter your gpa: "); 
     s3.gpa = input.nextFloat(); 

     System.out.println("your name: " + s1.name + "\n" 
       + "your id: " + s1.id + "\n" 
       + "your GPA: " + s1.gpa); 

    } 

}

来源

2017-11-11 Saleh Bakhat

欢迎来到Stackoverflow，请阅读[如何提问]（https://stackoverflow.com/help/how-to-ask）。请特别注意[如何创建MCVE]（https://stackoverflow.com/help/mcve）。您将付出更多努力发布一个好问题：一个容易阅读，理解和[主题]（https://stackoverflow.com/help/on-topic） - 的机会更高会吸引相关人员，你会得到更快的帮助。祝你好运！ – alfasin

显示您的代码，以便我们弄清楚发生了什么 – VHS

请在此处查看 https://pastebin.com/grCEuM9w –

您的扫描仪越来越搞砸了，如果你都使用nextLine和next/nextInt/nextDouble指this了解更多信息。

我改变了你的主要方法，现在它就像你想要的那样工作。

public static void main(String[] args) { 

    Scanner input = new Scanner(System.in); 

    Student s1 = new Student(); 
    System.out.print("Enter your name: "); 
    s1.name = input.nextLine(); 
    System.out.print("Enter your id: "); 
    s1.id = Integer.parseInt(input.nextLine()); 
    System.out.print("Enter your gpa: "); 
    s1.gpa = Float.parseFloat(input.nextLine()); 

    Student s2 = new Student(); 
    System.out.print("Enter your name: "); 
    s2.name = input.nextLine(); 
    System.out.print("Enter your id: "); 
    s2.id = Integer.parseInt(input.nextLine()); 
    System.out.print("Enter your gpa: "); 
    s2.gpa = Float.parseFloat(input.nextLine()); 

    Student s3 = new Student(); 
    System.out.print("Enter your name: "); 
    s3.name = input.nextLine(); 
    System.out.print("Enter your id: "); 
    s3.id = Integer.parseInt(input.nextLine()); 
    System.out.print("Enter your gpa: "); 
    s3.gpa = Float.parseFloat(input.nextLine()); 

    System.out.println("your name: " + s1.name + "\n" + "your id: " + s1.id + "\n" + "your GPA: " + s1.gpa); 

}

来源

2017-12-08 14:58:10 Naeramarth

java中的异常线程

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