package com.nsbt.assignment2;

public class Student
{
	String name;
	String id;
	double grade;

	public Student(String name,String id,double grade) {
		this.name=name;
		this.id=id;
		this.grade=grade;
	}

	public Student(String name, String id)
	{
		this(name,id,0.0);
		this.name=name;
		this.id=id;

	}

	public Student(String id)
	{
		this(null,id,0.0);
		this.id=id;
	}

	 void display()
	{
		System.out.println("Student name: "+name+" Student id: "+id+" Student grade: "+grade);
	}

	void display(int currentYear)
	{
		System.out.println("Student name: "+name+" Student id: "+id+" Student grade: "+grade+" Current year of the student"+currentYear);
		display();
	}
}


//

package com.nsbt.assignment2;

import java.util.Scanner;

public class Application {

	public static void main(String[] args)
	{
		Scanner sc=new Scanner(System.in);
		int input;
		System.out.println("you want enter \n 1. only id \n 2. Id with name \n 3. all three values(id,name and grade)");
		input=sc.nextInt();
		System.out.println("1. Display with current year or 2. normal display");
		int inputDisplay=sc.nextInt();
		if(inputDisplay==1)
		{
			switch(input)
			{
			case 1:
			{
				System.out.println("Enter Id");
				Student st=new Student(sc.next());
				System.out.println("Enter the year");
				st.display(sc.nextInt());
				break;
			}
			case 2:
			{
				System.out.println("Enter id and name");
				Student st=new Student(sc.next(),sc.next());
				System.out.println("Enter the year");
				st.display(sc.nextInt());
				break;
			}
			case 3:
			{
				System.out.println("Enter all three values");
				Student st=new Student(sc.next(), sc.next(), sc.nextDouble());
				System.out.println("Enter the year");
				st.display(sc.nextInt());
				break;
			}
			}
		}
		else
		{
			switch(input)
			{
			case 1:
			{
				System.out.println("Enter Id");
				Student st=new Student(sc.next());
				st.display();
				break;
			}
			case 2:
			{
				System.out.println("Enter id and name");
				Student st=new Student(sc.next(),sc.next());
				st.display();
				break;
			}
			case 3:
			{
				System.out.println("Enter all three values");
				Student st=new Student(sc.next(), sc.next(), sc.nextDouble());
				st.display();
				break;
			}
			}
		}

		}




}