Lottery Draw Java

Following program will produce a ticket number with given no of digits randomly and will help in Lottery Draw :

Code::

import java.util.*;
public class LotteryDraw 
{
    public static void main(String[] nt) 
    {
        Scanner in=new Scanner(System.in);
        System.out.print("How many digits a ticket have: ");
        int k=in.nextInt();
        int [] num=new int[10];
        for(int i=0;i<num.length;i++)
        {
            num[i]=i;
        }
        int [] result=new int[k];
        for(int i=0;i<result.length;i++)
        {
            int r=(int)(Math.random()*10); //here 10 bcz the random function will produce positive value less than 1.0 
            result[i]=num[r];
        }
        System.out.print("So the Jackpot Ticket is: ");
        for(int i=0;i<result.length;i++)
        {
            System.out.print(result[i]);
        }
        System.out.println();
    }
}

Output::

More Operations on datetime :)

Suppose we want to Display only current Month, Year or Day. Python allows us to do this through some predefined Functions.

Following Program Illustrates it:

from datetime import datetime

current=datetime.now(); #assigning variable

print(current.year);    #Current year

print(current.month);    #Current month

print(current.day);    #Current date

Functions for Time:

print(current.hour);    #Current Hour
print(current.minute);    #Current Minute
print(current.second);    #Current Second

Date and Time in Python :)

Python contains Library datetime which allows us to keep track of current Time and Date.
Following Program shows the usage of datetime Library:

from datetime import datetime  #importing datetime library
current=datetime.now();  #assigning variable to current date and time
print(current);

datetime.now() Function is used to get the current date and time.

Note: # keyword is used for Comments.

Common Elements In Two Lists

Question::
Define a function is_common() that takes two lists and returns True if they have at least one member in common, False otherwise.

Code::

def is_common(d,n):
    for i in d:
        for j in n:
             if(j==i):
              return True
    return False 
n=input("Enter list: ")
nt=n.split(",")    
d=input("Enter another list: ")
dm=d.split(",")
if(is_common(dm,nt)):
    print("Yes There are Common Elements")
else:
    print("No There are no Common Elements")
    

Output::

Searching value in a List

Question::

Write a function is_member() that takes a value (i.e. a number, string, etc) x and a list of values a, and returns True if x is a member of a, False otherwise.

Code::
def is_member(d,n):
    for i in n:
        if(d==i):
            return True
    return False 
n=input("Enter list:")
nt=n.split(",")    
d=input("Enter Value to be searched:")
if(is_member(d,nt)):
    print("Yes it is Present")
else:

    print("No it is not Present")

Output::

String Palindrome or Not Python

Question::

Define a function reverse() that computes the reversal of a string. For example, reverse("I am testing") should return the string "gnitset ma I".

Code::
def reverse(l):
    return"".join(l[i] for i in range(len(l)-1,-1,-1)) 
name=input("Enter String:")
rev=reverse(name)
print("Reverse is:",rev)
if(rev==name):
    print("String is Palindrome")
else:

    print("Not a Palindrome")

Output::

Addition and Product of a List Python

Question::

Define a function sum() and a function multiply() that sums and multiplies (respectively) all the numbers in a list of numbers. For example, sum([1, 2, 3, 4]) should return 10, and multiply([1, 2, 3, 4]) should return 24.

Code::

def add(l):

    s=0

    for j in l:

        s=s+int(j)

    return s

def multiply(l):

    m=1

    for j in l:

        m=m*int(j)

    return m

d=input("Enter List: ")

n=d.split(",")

print("Entered List=",n)

print("Addition is:",add(n))

print("Product is:",multiply(n))

Output::