Sunday, August 20, 2017
python part 2
Python 3.6.1 (v3.6.1:69c0db5, Mar 21 2017, 17:54:52) [MSC v.1900 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> print("hello")
hello
>>> print("hii prakash")
hii prakash
>>> a=10
>>> print(a)
10
>>> name ="prakash"
>>> print(name)
prakash
>>> b=12.23
>>> print(b)
12.23
>>> a=12
>>> b=23
>>> c=a+b
>>> print(c)
35
>>> c=a-b
>>> print(c)
-11
>>> c=a*b
>>> print(c)
276
>>> c=a/b
>>> print(c)
0.5217391304347826
>>> c=a%b
>>> print(c)
12
>>> prakash=dev=puneet=abhi=akash=virat=tanya=rashi=animesh="BBD"
>>> print(abhi)
BBD
>>> print(animesh)
BBD
>>> print(virat)
BBD
>>> student,fee,father="prakash",12,"father"
>>> print(fee)
12
>>> print(father)
father
>>>
Type "copyright", "credits" or "license()" for more information.
>>> print("hello")
hello
>>> print("hii prakash")
hii prakash
>>> a=10
>>> print(a)
10
>>> name ="prakash"
>>> print(name)
prakash
>>> b=12.23
>>> print(b)
12.23
>>> a=12
>>> b=23
>>> c=a+b
>>> print(c)
35
>>> c=a-b
>>> print(c)
-11
>>> c=a*b
>>> print(c)
276
>>> c=a/b
>>> print(c)
0.5217391304347826
>>> c=a%b
>>> print(c)
12
>>> prakash=dev=puneet=abhi=akash=virat=tanya=rashi=animesh="BBD"
>>> print(abhi)
BBD
>>> print(animesh)
BBD
>>> print(virat)
BBD
>>> student,fee,father="prakash",12,"father"
>>> print(fee)
12
>>> print(father)
father
>>>
PYTHON
PYTHON
1.open Source language
2.it was developed by Guido van Rossum.
featares of python
1. easy to learn
2. Simple synax
3. Huge nume of laibraries
Python is an object-oriented,
high level language, interpreted,
dynamic and multipurpose programming language.
Python is derived from many other languages,
including ABC, Modula-3,
C, C++, Algol-68, SmallTalk, and
Unix shell and other scripting languages.
Python is copyrighted. Like Perl,
Python source code is now available
under the GNU General Public License (GPL).
Video link VIDEO
1.open Source language
2.it was developed by Guido van Rossum.
featares of python
1. easy to learn
2. Simple synax
3. Huge nume of laibraries
Python is an object-oriented,
high level language, interpreted,
dynamic and multipurpose programming language.
Python is derived from many other languages,
including ABC, Modula-3,
C, C++, Algol-68, SmallTalk, and
Unix shell and other scripting languages.
Python is copyrighted. Like Perl,
Python source code is now available
under the GNU General Public License (GPL).
Video link VIDEO
Saturday, August 19, 2017
Abstract and Interface
Abstract
A class that is declared with abstract keyword, is known as
abstract class in java. It can have abstract and non-abstract methods (method
with body).
Abstraction is a process of hiding the implementation
details and showing only functionality to the user.
A class that is declared as abstract is known as abstract
class. It needs to be extended and its method implemented. It cannot be
instantiated.
abstract class
abstract class A{}
abstract method
A method that is declared as abstract and does not have implementation
is known as abstract method.
Example abstract method
abstract void printStatus();//no body and abstract
An interface in java is a blueprint of a class. It has
static constants and abstract methods.
Interface
The interface in java is a mechanism to achieve abstraction.
There can be only abstract methods in the java interface not method body. It is
used to achieve abstraction and multiple inheritance in Java.
Java Interface also represents IS-A relationship.
It cannot be instantiated just like abstract class.
Why use Java interface?
There are mainly three reasons to use interface. They are
given below.
It is used to achieve abstraction.
By interface, we can support the functionality of multiple
inheritance.
It can be used to achieve loose coupling.
Why multiple inheritance is not supported in java?
To reduce the complexity and simplify the language, multiple
inheritance is not supported in java.
Consider a scenario where A, B and C are three classes. The
C class inherits A and B classes. If A and B classes have same method and you
call it from child class object, there will be ambiguity to call method of A or
B class.
Since compile time errors are better than runtime errors,
java renders compile time error if you inherit 2 classes. So whether you have
same method or different, there will be compile time error now.
package javaapplication19;
abstract class
animal{
abstract void
eat();
abstract void run();
public void body()
{
System.err.println("two eye and two ear");
}
}
class lion extends animal{
public void
display(){
System.out.println("king");
}
@Override
void eat() {
System.err.println("Meat");
}
@Override
void run() {
System.err.println("fast");
}
}
class cow extends animal{
public void
display(){
System.out.println("mother");
}
@Override
void eat() {
System.err.println("grass");
}
@Override
void run() {
System.err.println("slow");
}
}
public class JavaApplication19 {
public static void
main(String[] args) {
lion obj = new
lion();
obj.body();
obj.eat();
obj.display();
obj.run();
}
}
INTERFACE
/*
* To change this
license header, choose License Headers in Project Properties.
* To change this
template file, choose Tools | Templates
* and open the
template in the editor.
*/
package javaapplication20;
interface mother{
void money();
void dis();
}
class father{
public void
money(){
System.err.println("10000");
}
void disp(){
System.err.println("m");
}
}
class son extends father implements mother{
public void
display()
{
System.err.println("son");
}
@Override
public void dis()
{
throw new
UnsupportedOperationException("Not supported yet."); //To change body
of generated methods, choose Tools | Templates.
}
}
public class JavaApplication20 {
public static void
main(String[] args) {
son obj = new
son();
obj.money();
}
}
Friday, August 18, 2017
Alphabet Patterns
A AB ABC ABCD ABCDE E DE CDE BCDE ABCDEA BA CBA DCBA EDCBAE ED EDC EDCB EDCBAABCDE ABCD ABC AB AABCDE BCDE CDE DE EEDCBA DCBA CBA BA AE DD CCC BBBB AAAAA1 2 3 2 3 4 5 4 3 4 5 6 7 6 5 4 5 6 7 8 9 8 7 6 5 6 7 8 9 0 1 0 9 8 7 6 7 8 9 0 1 2 3 2 1 0 9 8 7 8 9 0 1 2 3 4 5 4 3 2 1 0 9 |
Thursday, August 17, 2017
abstract
package javaapplication18;
abstract class animal{
abstract void eat();
abstract void run();
void b(){
}
abstract void a();
}
class lion extends animal{
public void big()
{
System.out.println("king");
}
@Override
void eat() {
System.out.println("Meat");
}
@Override
void run() {
System.out.println("Fast");
}
@Override
void a() {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}
class cow extends animal{
@Override
void eat() {
}
@Override
void run() {
}
@Override
void a() {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}
public class JavaApplication18 {
public static void main(String[] args) {
}
}
Wednesday, August 16, 2017
wap accept number and print in word. ex 101 print one hundred one
package javaapplication81;
import java.util.Scanner;
/**
*
* @author admin
*/
public class JavaApplication81 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
String num[]={"one","two","three","
// TODO code application logic here
String num1[]={"ten","eleven","
String num3[]={"ten","twenty","
// TODO code application logic here
int n; n=sc.nextInt();
int q,r,c=0,a;a=n;int t,t1,h,h1,i,j,ten,ten1;
while(n!=0)
{
q=n/10;
r=n%10;
n=q;
c++;
}
System.out.println(c);
if(c==4)
{
t=a/1000;
t1=a%1000;
h=t1/100;
h1=t1%100;
ten=h1/10;
ten1=h1%10;
for(i=1;i<=9;i++)
{
if(t==i)
{
System.out.print(num[i-1]+" thousand ");
}
}
for(i=1;i<=9;i++)
{
if(h==i)
{
System.out.print(num[i-1]+" hundred ");
}
}
if(ten==1)
{
j=0;
for(i=11;i<=19;i++)
{
if(h1==i)
{
System.out.print(num1[j]);
}
j++;
}
}
else
{
for(i=1;i<=9;i++)
{
if(ten==i)
{
System.out.print(num3[i-1]+" ");
}
}
for(i=1;i<=9;i++)
{
if(ten1==i)
{
System.out.print(num[i-1]);
}
}
}
}
if(c==3)
{
h=a/100;
h1=a%100;
ten=h1/10;
ten1=h1%10;
for(i=1;i<=9;i++)
{
if(h==i)
{
System.out.print(num[i-1]+" hundred ");
}
}
if(ten==1)
{
j=0;
for(i=10;i<=19;i++)
{
if(h1==i)
{
System.out.print(num1[j]);
}
j++;
}
}
else
{
for(i=1;i<=9;i++)
{
if(ten==i)
{
System.out.print(num3[i-1]+" ");
}
}
for(i=1;i<=9;i++)
{
if(ten1==i)
{
System.out.print(num[i-1]);
}
}
}
}
if(c==2)
{
h1=a%100;
ten=a/10;
ten1=a%10;j=0;
for( i=11;i<=19;i++)
{
if(h1==i)
{
System.out.print(num1[j]); System.exit(0);
}j++;
}
for(i=1;i<=9;i++)
{
if(ten==i)
{
System.out.print(num3[i-1]+" ");
}}
for(i=1;i<=9;i++)
{
if(ten1==i)
{
System.out.print(num[i-1]);
}
}
}
if(c==1)
{
for(i=1;i<=9;i++)
{
if(a==i)
{
System.out.print(num[i-1]);
}
}
}
}}
Thursday, August 3, 2017
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