这个问题在这里已经有答案了：

java：未解决的编译问题（8个答案）
5个月前关门了。
所以我试图在eclipse上构建一个email admini应用程序，但是我遇到了一个问题。控制台显示：

Exception in thread "main" java.lang.Error: Unresolved compilation problem: 
email cannot be resolved to a type

at emailapp.EmailApp.main(EmailApp.java:6)

以下是我在两个类中编写的代码：
打包emailapp；
公共类emailapp{

public static void main(String[] args) {
    Email em1 = new email("Goanar","Rambang");
}

}

public class Email {
    private String firstName;
    private String lastName;
    private String password;
    private String department; 
    private int mailboxCapacity;
    private String alternateEmail; 

    //The Blueprint - Template
    // Add constructor for first and last name
    // Ask for department]
    // Generate random password
    // Set mailbox capacity
    // Set the alternate email
    // Change the password 

    //Constructor*/
    public Email(String firstName, String lastName) {
        this.firstName = firstName;
        this.lastName = lastName;
        System.out.println("EMAIL CREATED " + this.firstName + "" + this.lastName);
    }
}

为什么我会把我的应用搞砸？