Cannot be resolved to a type ошибка java

This is the error I’m getting:

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

    at TeamLeadDemo.main(TeamLeadDemo.java:26)

This is my code:

import java.util.Scanner;

public class Employee {
    public String empName, empNumber, hireDate;    

    public class TeamLeadDemo {}

    public Employee(String empName, String empNumber, String hireDate) {
        this.setEmpName(empName);
        this.setEmpNumber(empNumber);
        this.setHireDate(hireDate);
    }

    public void setEmpName(String empName) {
         this.empName = empName;
    }
        public void setEmpNumber(String empNumber) {
         this.empNumber = empNumber;
    }
    public void setHireDate(String hireDate) {
         this.hireDate = hireDate;
    }
    public String getEmpName() {
        return empName;
    }
    public String getEmpNumber() {
        return empNumber;
    }
    public String getHireDate() {
        return hireDate;
    }

    public class ShiftSupervisor extends Employee {
        public double annualSalary, annualProduction;
        //constructor
        public ShiftSupervisor(String empName, String empNumber,
                               String hireDate, double annualSalary,
                               double annualProduction) {
            super(empName,empNumber, hireDate);
            this.setAnnualSalary(annualSalary);
            this.setAnnualProduction(annualProduction);
        }

        public double getAnnualSalary() {
            return annualSalary;
        }
        public double getAnnualProduction() {
            return annualProduction;
        }
        public void setAnnualSalary(double annualSalary) {
            this.annualSalary = annualSalary;
        }
        public void setAnnualProduction(double annualProduction) {
            this.annualProduction = annualProduction;
        }

        public String toString() {
            return "Name: "+ getEmpName() + "nEmpID: "+ getEmpNumber()
                   + "nHire Date: "+ getHireDate() + "nAnnual Salary: "
                   + annualSalary + "nProduction: "+ annualProduction;
        }

        public class employeeStart {
            public void main(String[] args) {
                String name, id, date;
                double sal, prod;

                //create scanner object
                Scanner keyboard = new Scanner(System.in);

                //inputting data
                System.out.println("Enter Name: ");
                name = keyboard.nextLine();
                System.out.println("Enter id: ");
                id = keyboard.nextLine();
                System.out.println("Enter Hire Date: ");
                date = keyboard.nextLine();
                System.out.println("Enter Annual: ");
                sal = keyboard.nextDouble();
                System.out.println("Enter production: ");
                prod = keyboard.nextDouble();

                //instantiating object
                ShiftSupervisor pw = new ShiftSupervisor(name, id, date, sal, prod);

                //outputting data
                System.out.println("Employee Details: n" + pw);
            }
        }
        public class TeamLeader {
            public double monthlyBonus;
            public int minTraining, trainingPresent;    

            public TeamLeader(double monthlyBonus, int minTraining, int trainingPresent) {
                this.setMonthlyBonus(monthlyBonus);
                this.setMinTraining(minTraining);
                this.addtrainingPresent(trainingPresent);                    
            }

            public void setMonthlyBonus(double monthlyBonus) {
                this.monthlyBonus = monthlyBonus;
            }
            public void setMinTraining(int minTraining) {
                this.minTraining = minTraining;
            }
            public void setTrainingPresent(int t) {
                trainingPresent = t;
            }
            public void addtrainingPresent(int hours) {
                trainingPresent += hours;
            }
            public double getMonthlyBonus() {
                return monthlyBonus;
            }
            public int getMinTraining() {
                return minTraining;
            }
            public int getTrainingPresent() {
                return trainingPresent;
            }
            public String toString() {
                return "Bonus: "+ getMonthlyBonus() + "nMinimum Training: "
                + getMinTraining() + "nAttendence: "+ getTrainingPresent();
            }
        }
    }
}

In addition, I declared this in a separate class:

import java.util.Scanner;

public class TeamLeadDemo extends Employee {
    public TeamLeadDemo(String empName, String empNumber, String hireDate) {
        super(empName, empNumber, hireDate);
        // TODO Auto-generated constructor stub
    }

public static void main(String[] args) {
    double sal;
    int min, atten;

    //create scanner object
    Scanner keyboard = new Scanner(System.in);

    //inputting data
    System.out.println("Enter minimum training: ");
    min = keyboard.nextInt();
    System.out.println("Enter id: ");
    atten = keyboard.nextInt();
    System.out.println("Enter Bonus: ");
    sal = keyboard.nextDouble();

    //instantiating object
    ShiftSupervisor pw = new TeamLeader(sal, min, atten);

    //outputting data
    System.out.println("Employee Details:n" + pw);

    }
}

What is causing this error and how might I resolve it?

EDIT: Indentation, whitespace, naming conventions and readability issues have been somewhat addressed.

When creating a new Java Servlet in Eclipse IDE, you may encounter the following errors:

HttpServlet cannot be resolved to a type
HttpServletRequest cannot be resolved to a type
HttpServletResponse cannot be resolved to a type
ServletException cannot be resolved to a type
The import javax.servlet cannot be resolved
WebServlet cannot be resolved to a type

It looks something like this screenshot in Eclipse:

The reason is the Java Servlet API is missing in the project’s classpath. You can solve this problem by specifying a server runtime for the project, e.g. Apache Tomcat runtime – because a Java web server is a servlet container that implements the Servlet API.

In Eclipse, right click on the project, click Properties. In the project properties dialog, click Java Build Path, and click the button Add Library… as shown below:

In the Add Library dialog appears, select Server Runtime:

Click Next. In the next screen select Apache Tomcat and click Finish:

If you don’t see any Apache Tomcat servers here, probably you haven’t installed Tomcat nor added to Eclipse. So follow this tutorial to add Tomcat in Eclipse.

Click Finish to close the Server Library dialog, and you will see the server library Apache Tomcat appears:

Then click Apply and Close, the errors will be gone.

In case you use Maven, the solution would be simpler. Just add a dependency for Java Servlet API in the pom.xml file like this:

<dependency>
	<groupId>javax.servlet</groupId>
	<artifactId>javax.servlet-api</artifactId>
	<version>3.0.1</version>
	<scope>provided</scope>
</dependency>

Save the file and wait for seconds for Maven to update the project. You will see the errors are gone way.

NOTE: To avoid this error in future, you should select the Target Runtime as Apache Tomcat when creating the project in Eclipse:

Other Java Servlet Tutorials:

• Java Servlet for beginners (XML)
• Java Servlet for beginners (Annotation)
• Java Servlet and JSP Hello World Tutorial with Eclipse, Maven and Apache Tomcat
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