Thread: Java error

 
public class Student {
 
		private String FirstName;
		private String LastName;
		private String Address;
		private String PhoneNumber;
		private int Credits;
		private double Tuition;
		private boolean state; 
		private boolean LateFee;
		private boolean CampusFood;
		private boolean HealthCare;
 
 
 
	public Student(String studentFirstName, String studentLastName, String studentAddress,String studentPhoneNumber, int studentCredits)
		   {
			FirstName = studentFirstName;
			LastName = studentLastName;
			Address = studentAddress;
			PhoneNumber = studentPhoneNumber;
			Credits = studentCredits;
		   }
	public void readInput()
	   {
	     System.out.println("Name: " + FirstName + " " + LastName);
	     System.out.println("Address: " + Address);
	     System.out.println("PhoneNumber: " + PhoneNumber);
	     System.out.println("Credits: " + Credits);
	   }
 
 
	public Student(double Tuition)
	{
	}
		   public Student calculateData()
			{
				double Tuition;
 
						if (Credits < 12)
						{
							Tuition = (Credits*102.50);
							Student Tuition = new Student(Tuition);
							return Tuition;
						}

this is part of my program. I am getting an error on the line Student Tuition = new Student(Tuition); It says the constructor Student(student) is undefined.

在你的程序里我只看到一个构造方法public Student(String studentFirstName, String studentLastName, String studentAddress,String studentPhoneNumber, int studentCredits)
你再new对象的时候 Student Tuition = new Student(Tuition); 调用的是public Studnet(Studnet s) 这个构造方法 因为此时Tuition 是Student类型 不是double类型
你应该改为
Student tt = new Student(Tuition);
return tt;

The reason is:
Your local variable is named as Tuition and you are creating new object of Student with the same name. JVM can not recognize the difference between the local variable and class object.
Change your object's or variable's name.