04-27-2011, 06:24 AM
Code:
Given below is the corrected code. This Student.java file is compiling correctly
// File Student.java
public class Student {
private String name;
private int rollNo;
private static int countStudents = 0;
// Standard Setters
public void setName(String name)
{
this.name = name;
}
// Note the masking of class level variable rollNo
public void setRollNo (int rollNo)
{
if (rollNo > 0)
{
this.rollNo = rollNo;
}
else
{
this.rollNo = 100;
}
}
// Standard Getters
public String getName ( )
{
return name;
}
public int getRollNo ( )
{
return rollNo;
}
// gettter of static countStudents variable
public static int getCountStudents(){
return countStudents;
}
// Default Constructor
public Student() {
name= "not set";
rollNo = 100;
countStudents += 1;
}
// parameterized Constructor for a new student
public Student(String name, int rollNo) {
setName(name); //call to setter of name
setRollNo(rollNo); //call to setter of rollNo
countStudents += 1;
}
// Copy Constructor for a new student
public Student(Student s) {
name = s.name;
rollNo = s.rollNo;
countStudents += 1;
}
// method used to display method on console
public void print () {
System.out.print("Student name: " +name);
System.out.println(", roll no: " +rollNo);
}
// overriding toString method of java.lang.Object class
public String toString(){
return "name: " + name + " RollNo: " + rollNo;
}
// overriding finalize method of Object class
public void finalize(){
countStudents -= 1;
}
} // end of class