E9.8
package excersize1;

import java.util.Scanner;

public class Person
{

String name;
int age;
Scanner actor= new Scanner(System.in);

	void Person_method()
	{
		System.out.println("what's your name");
		name = actor.nextLine();
		System.out.print("how old are you");
		age = actor.nextInt();
		System.out.print("your name is " + name + " you are " + age + " years old");

}

}



package excersize1;

public class Employee extends Person
{
	String job;
	int Salary;

	 void employee()
	{

		 if( age >16 )
		 {
			 System.out.println("what job do you have");
			 job = actor.nextLine();
			 System.out.println(" how much is your salary ");
			 Salary = actor.nextInt();
			 System.out.println("your job is " + job + " and you make " + Salary);


	}	}
}


package excersize1;

public class Student extends Person
{
int grade;
String Major;

	 void student()
	{
		if(age < 19){

		System.out.print(" what grade are you in");
		grade = actor.nextInt();
		actor.nextLine();
		System.out.println("whats your Major ");
		Major = actor.nextLine();
		System.out.print(" your grade is " + grade );
		System.out.print(" and you major in " + Major);
		}
	}

}




package excersize1;

public class Output {

	public static void main(String[] args)
	{
		Person m = new Person();
		Employee n = new Employee();
		Student s = new Student();
		m.Person_method();
		n.employee();
		s.student();


	}

}



E9.4

package excersize;

public class E904 {

	public static void main(String[] args)
	{
		/**
		 A question with a text and an answer.
		 */
		  class Question
		 {
		 private String text;
		 private String answer;
		 private String answer1;

		 /**
		 Constructs a question with empty question and answer.
		 */
		 public Question()
		 {
		 text = "what is |1|";
		 answer = "1" ;
		 answer1 = "-1" ;
		 }

		 /**
		 Sets the question text.
		 @param questionText the text of this question
		 */
		 public void setText(String questionText)
		 {
		 text = questionText;
		 }

		 /**
		 Sets the answer for this question.
		 @param correctResponse the answer
		 */
		 public void setAnswer(String correctResponse)
		 {
		 answer = correctResponse;
		 answer1 = correctResponse;
		 }

		 /**
		 Checks a given response for correctness.
		 @param response the response to check
		 @return true if the response was correct, false otherwise
		 */
		 public boolean checkAnswer(String response)
		 {
		 return response.equals(answer);
		 }

		 /**
		 Displays this question.
		 */
		 public void display()
		 {
		 System.out.println(text);
		 }
		 }



	}

}