JAVA PROGRAMS-Dispatch Program In Java

Dispatch Program In Java

Program Name:- dispatch.java

import java.io.*;
class a
{
void callme()
 {
 System.out.println("\nInside A's callme method");
 }
}
class b extends a
{
 void callme()
 {
 System.out.println("\nInside B's callme method");
 }
}
class c extends b
{
 void callme()
 {
 System.out.println("\nInside C's callme method");
 }
}
class dispatch
{
public static void main(String args[])
 {
 a obj=new a();
 b obj1=new b();
 c obj2=new c();
 a r;
 r=obj;
 obj.callme();
 r=obj1;
 obj1.callme();
 r=obj2;
 obj2.callme();
 }
}

JAVA PROGRAMS-Student Details Program in Java

Student Details Program in Java

Program Name:- student1.java

import java.io.*;

class studentdetail

{

int sno;

String sname,major,yos;

 void getdata()throws IOException

 {

 DataInputStream in=new DataInputStream(System.in);

 System.out.print("\n Enter the student number\t:");

 sno=Integer.parseInt(in.readLine());

 System.out.print("\n Enter the student name\t:");

 sname=in.readLine();

 System.out.print("\n Enter the student Major\t:");

 major=in.readLine();

 System.out.print("\n Enter the year of student\t:");

 yos=in.readLine();

 }

}

class markdetails extends studentdetail

{

int m1,m2,m3,m4,tot;

String res;

void read()throws IOException

 {

 DataInputStream in=new DataInputStream(System.in);

 getdata();

 System.out.print("\n Enter the mark1\t:");

 m1=Integer.parseInt(in.readLine());

 System.out.print("\n Enter the mark2\t:");

 m2=Integer.parseInt(in.readLine());

 System.out.print("\n Enter the mark3\t:");

 m3=Integer.parseInt(in.readLine());

 System.out.print("\n Enter the mark4\t:");

 m4=Integer.parseInt(in.readLine());

 }

void total()

 {

 tot=m1+m2+m3+m4;

 }

 void result()

 {

 if((m1>=50)&&(m2>=50)&&(m3>=50)&&(m4>=50))

 res="Pass";

 else

 res="Fail";

 }

 void display()

 {

 System.out.println("\n\n \t Student details \n\n");

 System.out.println("\n Student number\t:"+sno);

 System.out.println("\n Student name\t:"+sname);

 System.out.println("\n Student major\t:"+major);

 System.out.println("\n Year of Study\t:"+yos);

 System.out.print("\n mark1: \t"+m1+"\n\n mark2: \t"+m2+"\n\n mark3: \t"+m3+"\n\n mark4: \t"+m4);

 System.out.print("\n\n Total: \t"+tot+"\n\n Result: "+res);

 }

}

class student1

{

public static void main(String[]args)throws IOException

{

markdetails in=new markdetails();

in.read();

in.total();

in.result();

in.display();

}

}

JAVA PROGRAMS-For,While,Do-While,Ternary Loops programs in Java

For,While,Do-While,Ternary Loops programs in Java

Program Name:- simplepgm2

import java.io.*;

class simplepgm

{

void for_fun()

{

System.out.println("Enter the value ");

for(int i=1;i<=5;i++)

{

for(int j=1;j<=i;j++)

{

System.out.println(""+j);

}

System.out.println("\n");

}

}

void while_fun()

{

int a=0,b=1,c=1;

System.out.println("Fibonacci series");

System.out.println(a+"\n"+b+"\n");

while(c<=0)

{

int f=a+b;

System.out.println(f+"\n");

c+=1;

a=b;

b=f;

}

}

 void dowhile_fun()

 {

 int sum=0,i=1;

 do

{

sum=sum+i;

i+=1;

}

while(i<=10);

System.out.println("sum="+sum);

}

void ternary_fun()

{

int a=10,b=15,c=5;

int x=(a>b&&a>c)?a:(b>c)?b:c;

System.out.println(x+" is big");

}

}

class simplepgm2

{

public static void main(String arg[])throws IOException

{

char choice;

simplepgm obj=new simplepgm();

do

{

System.out.println("\n 1.For funtion");

System.out.println("\n 2.While funtion");

System.out.println("\n 3.do while funtion");

System.out.println("\n 4.Ternary funtion");

choice=(char)System.in.read();

}while(choice<'1'||choice>'8');

switch(choice)

{

case '1':

obj.for_fun();

break;

case '2':

obj.while_fun();

break;

case '3':

obj.dowhile_fun();

break;

case '4':

obj.ternary_fun();

break;

default:

System.out.println("not current choice");

}

}

}