Excersise: 5 Multilevel Inheritance | Java | Tamizhan Goals

Excersise: 5

    Create a program using Multilevel Inheritance

Program

     
import java.io.*;
import java.lang.String.*;
class Student
{
	protected String name;
	int regno,pi,ji,dsi,nmi;
public void getDetails()throws IOException
	{
		DataInputStream din=new DataInputStream(System.in);
		System.out.println("Enter the student name:");
		name=din.readLine();
		System.out.println("Enter the register no:");
		regno=Integer.parseInt(din.readLine());
		System.out.println("Enter the PIT internal mark:");
		pi=Integer.parseInt(din.readLine());
		System.out.println("Enter the java internal mark:");
		ji=Integer.parseInt(din.readLine());
		System.out.println("Enter the DS internal marks:");
		dsi=Integer.parseInt(din.readLine());
		System.out.println("Enter the non-major internal mark:");
		nmi=Integer.parseInt(din.readLine());
	}
}
class Exam extends Student
{
		int pe,je,dse,nme;
public void getMark()throws IOException
	{
		DataInputStream din=new DataInputStream(System.in);
		System.out.println("Enter the PIT external mark:");
		pe=Integer.parseInt(din.readLine());
		System.out.println("Enter the java external marks:");
		je=Integer.parseInt(din.readLine());
		System.out.println("Enter the Ds external mark:");
		dse=Integer.parseInt(din.readLine());
		System.out.println("Enter the non-major external mark:");
		nme=Integer.parseInt(din.readLine());
	}
}
class Result extends Exam
{
		String res=new String();
		String pr=new String();
		String jr=new String();
		String dsr=new String();
		String nmr=new String();
		String cla=new String();
		int tot,pt,jt,dst,nmt;
		float avg;

public void process()throws IOException
	{
		int count=0;
		pt=pi+pe;
		if (pi>=12 && pe>36)
		{
			pr="pass";
			count++;
		}
		else if(pi<12&&pe>49)
		{
			pr="pass";
			count++;
		}
		else pr="RA";
		jt=ji+je;
		if (ji>12 && je>36)
		{
			jr="pass";
			count++;
		}
		else if (ji<12&&je>49)
		{
			jr="pass";
			count++;
		}
		else
		jr="RA";
		dst=dsi+dse;
		if (dsi<12&&dse>36)
		{
		dsr="pass";
		count++;
		}
		else if (dsi<12&&dse>49)
		{
			dsr="pass";
			count++;
		}
		else
		dsr="pass";
		nmt=nmi+nme;
		if (nmi>12 && nme>36)
		{
			nmr="pass";
			count++;
		}
		else if(nmi<12&&nme>49)
		{
			nmr="pass";
			count++;
		}
		else
		nmr="RA";
		if (count==4)
		{
			tot=pt+jt+dst+nmt;
			res="pass";
			avg=tot/4;
			if (avg>74)
			cla="Distinction";
			else if (avg>59)
			cla="first";		
			else
			cla="second";
		}
		else
		{
			res="pass";
			tot=360;
		cla="++++++++++++";
		}
	}
public void display()throws IOException
	{
		System. out.println("Manonmaniam Sundharnar University"); 
		System.out.println("\tTirunelveli");
		System.out.println("T.D.M.N.S.College,T.Kallikulam");
		System.out.println("Name:"+name+"\tRegno:"+regno);
		System.out.println("________________________");
		System.out.println("PIT:"+"\t\t"+pi+"\t"+pe+"\t"+pt+"\t"+pr);
		System.out.println("Java:"+"\t\t"+ji+"\t"+je+"\t"+jt+"\t"+jr);
		System.out.println("DS:"+"\t\t"+dsi+"\t"+dse+"\t"+dst+"\t" +dsr);
		System.out.println("Non:"+"\t\t"+nmi+"\t"+nme+"\t"+nmt+"\t"+nmr);
		System.out.println("______________________________________");
System.out.println("RESULT:"+res+"\t"+ "TOTAL:" +tot+"\t"+ " AVERAGE:9"+avg+"\t"+"Class:" +cla);
	}
}
class inherit
{
	public static void main(String arg[])throws IOException
	{
		Result r=new Result();
		r.getDetails();
		r.getMark();
		r.process();
		r.display();
	}
}
       

Output