JAVA PROGRAMS-Multi Level Inheritance in Java

Multi Level Inheritance in Java

Program Name:- multi.java

import java.io.*;

class box1

{

int length,width,height;

box1()

 {

 length=0;

 width=0;

 height=0;

 }

box1(int l)

 {

 length=width=height=l;

 }

box1(int l,int w,int h)

 {

 length=l;

 width=w;

 height=h;

 }

int volume()

 {

 int v;

 v=length*width*height;

 return(v);

 }

}

class boxweight extends box1

{

double weight;

boxweight()

 {

 super();

 weight=0;

 }

boxweight(int l,double m)

 {

 super(l);

 weight=m;

 }

boxweight(int l,int w,int h,double m)

 {

 super(l,w,h);

 weight=m;

 }

}

class shipping extends boxweight

{

double cost;

shipping()

 {

 super();

 cost=0;

 }

shipping(int l,double m,double c)

 {

 super(l,m);

 cost=c;

 }

shipping(int l,int h,int w,double m,double c)

 {

 super(l,w,h,m);

 cost=c;

 }

}

class multi

{

public static void main(String args[])

{

shipping s1=new shipping(10,5,7,100.1,150.2);

shipping s2=new shipping(5,2,10,20.0,115.50);

double vol1,vol2;

vol1=s1.volume();

vol2=s2.volume();

System.out.println("\n\t Shipping list");

System.out.print("\n\n Volume weight cost");

System.out.print("\n"+vol1+" "+s1.weight+"rs\t"+s1.cost);

System.out.print("\n"+vol2+" "+s2.weight+"rs\t"+s2.cost);

 }

}

JAVA PROGRAMS-Hierarchical Inheritance in Java

Hierarchical Inheritance in Java

Program Name:- hiear.java

import java.io.*;
class vehicle
{
String regno;
int model;
 vehicle(String r,int m)
 {
 regno=r;
 model=m;
 }
 void display2()
 {
 System.out.print("\nRegistration number\t:"+regno);
 System.out.print("\nModel\t\t\t:"+model);
 }
}
class roadvehicle extends vehicle
{
int noof;
 roadvehicle(String r,int m,int n)
 {
 super(r,m);
 noof=n;
 }
 void display()
 {
 System.out.print("\n\n\t Road Vehicle\n\n");
 super.display2();
 System.out.print("\nNumber of wheel\t:"+noof);
 }
}
class watervehicle extends vehicle
{
int nn;
 watervehicle(String s,int m,int n)
 {
 super(s,m);
 nn=n;
 }
 void display1()
 {
 System.out.print("\n\n\t Water Vehicle\n\n");
 super.display2();
 System.out.print("\nNumber of leaf\t:"+nn);
 }
}
public class hiear
{
 public static void main(String[]args)
 {
 roadvehicle r;
 watervehicle w;
 r=new roadvehicle("TN 58 s 5482",2011,2);
 w=new watervehicle("TN  57 A 5828",2011,10);
 r.display();
 w.display1();
 }
}

JAVA PROGRAMS-Interface Demo program in java

Interface Demo program in java

Program Name:- inter1

import java.io.*;

interface demo

{

final double pi=3.14;

abstract double area(int r);

}

interface demo1

{

abstract double circum(int r);

}

class cir implements demo,demo1

{

public double area(int r)

{

return pi*r*r;

}

public double circum(int a)

{

return 2*pi*a*a;

}

}

class inter1

{

public static void main(String arg[])

{

cir c=new cir();

System.out.print("\nCircle\t:"+c.area(5));

System.out.print("\nCircum\t:"+c.circum(5));

}

}

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");

}

}

}

JAVA PROGRAMS-Stack Program In Java

Stack Program In Java

Program Name:- stackdemo.java

import java.io.*;
class stack
{
int s[]=new int[100];
int top;
void stack()
 {
 top=0;
 System.out.println("\n The stack is empty");
 }
public void push()throws IOException
 {
 DataInputStream inp=new DataInputStream(System.in);
 int x;
 if(top==100)
  {
  System.out.println("The Stack is full");
  }
 else
  {
  System.out.print("\n Enter the value  :");
  x=Integer.parseInt(inp.readLine());
  s[top]=x;
  top++;
  System.out.println("\n The value is pushed");
  }
 }
public void pop()throws IOException
 {
 DataInputStream inp=new DataInputStream(System.in);
 int y;
 if(top==0)
  {
  System.out.println("\n The stack is empty");
  }
 else
  {
  top--;
  y=s[top];
  s[top]='\0';
  System.out.println("\n The value is poped");
  }
 }
void display()
 {
 int i;
 if(top==0)
 {
  System.out.println("\nThe stack is empty");
  }
 else
  {
   System.out.println("\nValues are top-->");
  }
 for(i=top-1;i>=0;i--)
  System.out.println(s[i]);
 }
}
public class stackdemo
{
public static void main(String args[])throws IOException
 {
 stack in=new stack();
 int item=0;
 int opt=1;
 String s=new String();
 while(opt<4)
 {
 System.out.println("\n\n\t\t Main menu\n\n1.push\n\n2.Pop\n\n3.Display\n\n4.Exit\n\nSelection the option");
 DataInputStream din=new DataInputStream(System.in);
 s=din.readLine();
 opt=Integer.parseInt(s);
 switch(opt)
  {
   case 1:
   System.out.println("\nEnter the elementis add");
   in.push();
   break;
   case 2:
   System.out.println("\nEnter the delete item");
   in.pop();
   break;
   case 3:
   System.out.println("\nThe stack element is:");
   in.display();
   break;
   default:
   opt=4;
   }
  }
 }
}

JAVA PROGRAMS-Java Program using Super key

Java Program using Super key

Program Name:-  superkey.java

class rectangle

{

int length,breadth;

 rectangle(int l,int m)

 {

 length=l;

 breadth=m;

 }

 int area()

 {

 int a;

 a=length*breadth;

 return(a);

 }

}

class box extends rectangle

{

int height;

 box(int l,int b,int h)

 {

 super(l,b);

 height=h;

 }

 int volume()

 {

 int v;

 v=length*breadth*height;

 return(v);

 }

}

class superkey

{

 public static void main(String args[])

 {

 box in=new box(10,10,10);

 int a,v;

 a=in.area();

 v=in.volume();

 System.out.print("\nArea\t:"+a);

 System.out.print(" \nVolume\t:"+v);

 }

}

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();

}

}