source file name: SumSeries3.java import java.io.*; class A { int n; public A(int m) { n=m; } public void sum() { float sum=1.0f; float i=n; while(i>0) { float p=(int)Math.pow(2,i); sum=sum+(1/p); //System.out.println(p+","+sum); i--; } System.out.println(" Series Sum: "+sum); } } class SumSeri…

source file name: SumSeries1.java class A { int n; public A(int m) { n=m; } public void sum() { float sum=1; float i=n; while(i>0) { sum=sum+((i-1)/i); i--; } System.out.println(sum); } } class SumSeries1 { public static void main(String args[]) {  int i; i=Integer.parseInt(args[0]); A ob=new A(i); System.out.prin…

source file name: Div6or8Demo.java import java.io.*; class A { int y; public A(int n) { y=n; } public void disp() { int d=1; while(d<=y) { if(d%6==0 || d%8==0) System.out.println(d); d++; } } } class Div6or8Demo { public static void main(String as[]) {  int n=1; System.out.println("enter value: "); try {…

source file name:  MarksDemo.java   class Marks { int sub1 , sub2; public Marks(int s1, int s2) // definition constructor { sub1=s1; sub2=s2; } } class Marks1 { String name; Marks m; public Marks1(String nm,int s1, int s2) // definition constructor { m=new Marks(s1,s2); name=nm; } public void display() { System.out.pr…

source file name:  FactDemo.java   import java.io.*; class A { int y; public A(int n) { y=n; } public void disp() { int f=1; while(y>0) { f=f*y; y--; } System.out.println("Factorial value of given number is:="+f); } } class FactDemo { public static void main(String as[]) { int n=1; Syste…

source file name: Div5Demo.java   import java.io.*; class A { int y; public A(int n) { y=n; } public void disp() { if(y%5==0) System.out.println("given no is divisible by 5"); else System.out.println("given no is  not divisible by 5"); } } class Div5Demo { public static void main(String as[…

source file name: Quadratic.java class Quad { int a,b,c; public Quad(int p,int q,int r) { a=p;b=q;c=r; } public void disproots() { System.out.println("coefficents a:"+a+" b: "+b+" c: "+c); int d=(int)Math.sqrt(b*b-4*a*c); if(d>0)        { System.out.println("root are real:")…

source file name: Lines.java class Line { int a,b,c; public Line(int p,int q,int r)       {        a=p;b=q;c=r;       } public void slope() { int m=a; System.out.println("slope is:"+m); } public void yintercept() { int yi; yi=a-c/b; System.out.println(" y intercept is: "+yi); } public void xinterc…

source file name:  NumberDemo.java class A { int y; public A(int n)     {      y=n;     } public void divdisp() { int d=1; while(d<y) { if(y%d==0) System.out.print(d+" "); d++; } } public void perfectno() { int d=1; int sum=0; while(d<y) { if(y%d==0) sum=sum+d; d++; } if(sum==y) System.out.println(&qu…

source file name:  Div4or6Demo.java import java.io.*; class A { int y; public A(int n) { y=n; } public void disp() { if(y%4==0) System.out.println("Given number is Divisible by only 4 "); if(y%6==0) System.out.println("Given number is Divisible by only  6 "); if(y%4!=0 && y%6!=0) System.ou…

source file name: Div5allDemo.java import java.io.*; class A { int y; public A(int n) { y=n; } public void disp() { int d=1; while(d<=y) { if(d%5==0) System.out.println(d); d++; } } } class Div5allDemo { public static void main(String as[]) {  int n=1; System.out.println("enter value: "); try { DataInput…

source file name: MyServer.java   import java.io.*;   import java.net.*;   public class MyServer  {   public static void main(String[] args) {   try {   ServerSocket ss=new ServerSocket(6666);   Socket s=ss.accept();//establishes connection    DataInputStream dis=new DataInputStream(s.getInputStream());   String  str…

source file name:  MyClient1.java import java.net.*;   import java.io.*;   class MyClient1{   public static void main(String args[])throws Exception{   Socket s=new Socket("localhost",3333);   DataInputStream din=new DataInputStream(s.getInputStream());   DataOutputStream dout=new DataOutputStream(s.getOutpu…

source file name: Server1.java   import java.io.*;   import java.net.*;   public class Server1  {   public static void main(String[] args) {   try {   ServerSocket ss=new ServerSocket(1111);   Socket s=ss.accept();//establishes connection    DataOutputStream dout=new DataOutputStream(s.getOutputStream());   System.out…

Define an interface Lockable containing functions- open() and close(). Define 2 classes, File and cupboard that implements Lockable interface with other details. Call the functions using the variable of Lockable. source file name: MediaDemo.java //interface Lockable have open().close() abstract methods interface Loc…

Define an interface Controllable containing two functions- start() and stop(). Define 2 classes Television and Game that implements Controllable interface with other details. Call the functions using variable Controllable.  source file name:   LockDemo.java // interfaceControllable have start (),stop () abstract met…

Interfaces are sometimes used to indicate which classes have a certain capability or characteristic. Consider the following classes and interfaces. The abstract class Animal has abstract subclasses named Bird and reptile. Classes Dove, eagle Hawk, Penguin and Seagull extend Bird. Classes Rattle Snake and Turtle exte…

Write an application that combines several classes and interfaces. An abstract class Robot has concrete subclasses named RobotA, RobotB, RobotC. Class RobotA1 extends RobotA. Classes RobotB1 and RobotB2 extends RobotB. Class RobotC1 extends RobotC. The locomotion interface declares three methods name forward() and s…

source file name:  simpleoo1.java class simpleoo1 { int a,b; void get(int m, int n) { a=m; b=n; } void show() { System.out.println(" a: "+a+" b: "+b); } public static void main(String dbj[]) { System.out.println("object oriented program: "); simpleoo1 ob1=new simpleoo1(); simpleoo1 ob2=…

source file name: simple1.java   class Swap { int a,b; void set(int m,int n) { a=m; b=n; } void show()     { System.out.println("a="+a+" b="+b); } void swap() { int t=a; a=b; b=t; } } class simple1 { public static void main(String as[]) { Swap ob=new Swap(); ob.set(10,20); System.out.println("…

source file name: Inher11.CPP   #include<conio.h> #include<string.h> #include<iostream.h> class Fact { public : int  fact(int n) {     int f=1;     while(n>0)     {     f*=n;     n--;     }     return f; } }; class strdemo: public Fact { public: void Vowels(const char *str) { int cost=0,sp=0,vl=0;…

source file name: opequal,CPP #include<iostream.h> #include<conio.h> class Circle { int r; public: Circle(){} Circle(int n) { r=n; } void disp() { cout<<"\n radius= "<<r <<endl; } Circle operator=(int); }; Circle Circle::operator=(int n) { r=n; return *this; } int main() { Circ…

source file name: constemp.CPP #include <iostream.h> #include <conio.h> #include <string.h> class Employee {        int id;//data member (also instance variable)        char name[20];//data member(also instance variable)        float salary;        public:        Employee() {     id = 10;     …

source file name: copycst.CPP #include<iostream.h> #include<conio.h> class Point { private: int x, y; public: Point(int x1, int y1) { x = x1; y = y1; } // Copy constructor Point(const Point &p1) {x = p1.x; y = p1.y; } int getX() { return x; } int getY() { return y; } }; int main() …

source file name: funov5.CPP #include <iostream.h> #include <conio.h> // function with 2 parameters void disp(int a, float b) {     cout << "Integer number: " << a;     cout << " and float number: " << b << endl; } // function with double type single param…

#include<conio.h> #include <iostream.h> class FunABS { public: int abs(int n) { cout<<"\n In Integer fuction "<< endl; if(n<0) return -n; else return n; } float abs(float n) { cout<<" \n In float fuction "<< endl; if(n<0) return -n; else return n; } }; in…

source file name: OOP5.CPP   #include <iostream.h> // create a class class Room  {     int len;     int bd;     int ht; public: void setdata(int a, int b, int c) { len=a; bd=b; ht=c; }     long area() { return len * bd;     }     long volume() { return len * bd * ht;     } }; int main()  {     // create obje…

source file name: Primeno3.CPP   #include<conio.h> #include<iostream.h> int  main() { int n,d; clrscr(); cout<<"\n enter any  number: "; cin>>n; d=2; while(d<n) { if(n%d==0) { cout<<"\n given no is not prime no: "<<n; break; } else d++; } if(n==d) cout<<…

source file name: Armstrong1.CPP   #include<stdio.h> #include<conio.h> #include<iostream.h> int  main() { int n,d; int sum=0,temp; clrscr(); cout<<"\n enter any 3 digit number: "; cin>>n; temp=n; while(n>0) { d=n%10; sum=sum+(d*d*d); n=n/10; } if(sum==temp) cout<<"…

source file name: odevens.CPP   #include<stdio.h> #include<conio.h> #include<iostream.h> int  main() { int n; //clrscr(); cout<<"\n enter any no."; cin>>n; if(n%2==0) cout<<"\n given no is even"; else cout<<"\n given no is odd"; if(n>0) cout<…

source file name: datedemo3.java import java.util.*; class datedemo3 { public static void main(String as[]) { String mon[]={"Jan","Feb","March","April","May","June", "July","August","Sep","Oct","Nov","De…

source fie name: datedemo2.java   import java.util.*; class datedemo2 { public static void main(String as[]) { System.out.println("Date and Time demo program: "); Date d=new Date(); System.out.println("Today's Date and Time is: "+d); int day=d.getDay(); int mon=d.getMonth(); int year=d.getYear(…