Question

我有两个班级文件＆amp;我无法在日食中发射。第一个：

import java.util.Scanner;

class bear{
public static void main(String[] args){

    Scanner Bugs = new Scanner(System.in);
    System.out.println("Please enter your name");
    pee obj1 = new pee();
    String Name = Bugs.nextLine();
    obj1.PrintMessage(Name);
    Bugs.close();
}  }

第二个：

public class pee {

   public void PrintMessage(String Name){
       System.out.println("Hello, your name is:" + Name);
   }
}

Answer 1

主要课程应始终公开

public class bear{
   public static void main(String[] args){
     Scanner Bugs = new Scanner(System.in);
     System.out.println("Please enter your name");
     pee obj1 = new pee();
     String Name = Bugs.nextLine();
     obj1.PrintMessage(Name);
     Bugs.close();
   } 
}

Answer 2

您需要对类和变量使用Java命名约定，如下所示：

import java.util.Scanner;

public class Bear{
    public static void main(String[] args){

        Scanner bugs = new Scanner(System.in);
        System.out.println("Please enter your name");
        Pee obj1 = new Pee();
        String name = bugs.nextLine();
        obj1.PrintMessage(name);
        bugs.close();
    }
}

第二节课：

class Pee {
    public void printMessage(String name){
        System.out.println("Hello, your name is:" + name);
    }
}

Answer 3

如果您的java文件是bear.java，则需要在类bear上声明public。以下是示例代码： bear.java

public class bear {
public static void main(String[] args) {
    Scanner Bugs = new Scanner(System.in);
    System.out.println("Please enter your name");
    pee obj1 = new pee();
    String Name = Bugs.nextLine();
    obj1.PrintMessage(Name);
    Bugs.close();
}
}

class pee {
public void PrintMessage(String Name) {
    System.out.println("Hello, your name is:" + Name);
}
}

无法在Eclipse中启动

3 个答案: