Programming challenges I use to hire Programmers

Java code:


public class Add
{
public static void main(String[] args)
{
int sum=0;
int num = 0;
System.out.println("This Java program will add all the natural numbers below one thousand that are multiples of 3 or 5.");
while(num<999)
{
num++;
if(num%3 == 0 || num%5 == 0)
{
sum=sum+num;
}
}
System.out.println("Sum is: "+ sum);
}
}


I like these kind of programming tasks. can you give more ?

nice puzzle .how can we do this-
write any number-
2
you wrote-two

in java ??How is this possible i still dont know

vincinice puzzle .how can we do this-
write any number-
2
you wrote-two

in java ??How is this possible i still dont know

It's simple. we have to create a scanner object and take input. Re-printing the number pretty easy 😀 Let me try and give the code.

Here is the code:

import java.util.Scanner;
public class Number
{
public static void main(String args[])
{
Scanner input=new Scanner(System.in);
int number;
System.out.print( "Enter any number: " );
number=input.nextInt();
System.out.printf( "You have entered:%d ",number );
}
}

i think you didnt understood the whole puzzle i posted.When user enters integers,its output must be in words.like if i enter 100,so output must be "one hundred"

vincii think you didnt understood the whole puzzle i posted.When user enters integers,its output must be in words.like if i enter 100,so output must be "one hundred"

Oops..😕 let me give a one more trail....

Bro. Finally got it after taking help from Google.
Concept is simple:
1. Analyzing the input(counting no. of digits).
2. Converting to string based on no. of digits in the input.
Code is :

import java.lang.*;
import java.io.*;
import java.util.*;
class constNumtoLetter{
String[] unitdo ={"", " One", " Two", " Three", " Four", " Five",
" Six", " Seven", " Eight", " Nine", " Ten", " Eleven", " Twelve",
" Thirteen", " Fourteen", " Fifteen", " Sixteen", " Seventeen",
" Eighteen", " Nineteen"};
String[] tens = {"", "Ten", " Twenty", " Thirty", " Forty", " Fifty",
" Sixty", " Seventy", " Eighty"," Ninety"};
String[] digit = {"", " Hundred", " Thousand", " Lakh", " Crore"};
int r;
//Count the number of digits in the input number
int numberCount(int num){
int cnt=0;
while (num>0){
r = num%10;
cnt++;
num = num / 10;
}
return cnt;
}
//Function for Conversion of two digit
String twonum(int numq){
int numr, nq;
String ltr="";
nq = numq / 10;
numr = numq % 10;
if (numq>19){
ltr=ltr+tens[nq]+unitdo[numr];
}
else{
ltr = ltr+unitdo[numq];
}
return ltr;
}
//Function for Conversion of three digit
String threenum(int numq){
int numr, nq;
String ltr = "";
nq = numq / 100;
numr = numq % 100;
if (numr == 0){
ltr = ltr + unitdo[nq]+digit[1];
}
else{
ltr = ltr +unitdo[nq]+digit[1]+" and"+twonum(numr);
}
return ltr;
}
}
class ActiveMQSwing{
public static void main(String[] args){
try
{
//Defining variables q is quotient, r is remainder
int len, q=0, r=0;
String ltr = " ";
String Str = "You have entered";
constNumtoLetter n = new constNumtoLetter();
System.out.println("Enter number");
Scanner input=new Scanner(System.in);
int num = input.nextInt();
if (num <= 0)
System.out.println("Zero or Negative number not for conversion");
while (num>0){
len = n.numberCount(num);
//Take the length of the number and do letter conversion
switch (len){
case 8:
q=num/10000000;
r=num%10000000;
ltr = n.twonum(q);
Str = Str+ltr+n.digit[4];
num = r;
break;
case 7:
case 6:
q=num/100000;
r=num%100000;
ltr = n.twonum(q);
Str = Str+ltr+n.digit[3];
num = r;
break;
case 5:
case 4:
q=num/1000;
r=num%1000;
ltr = n.twonum(q);
Str= Str+ltr+n.digit[2];
num = r;
break;
case 3:
if (len == 3)
r = num;
ltr = n.threenum(r);
Str = Str + ltr;
num = 0;
break;
case 2:
ltr = n.twonum(num);
Str = Str + ltr;
num=0;
break;
case 1:
Str = Str + n.unitdo[num];
num=0;
break;
default:
num=0;
System.out.println("Exceeding Crore....No conversion");
System.exit(1);
}
if (num==0)
System.out.println(Str+" ");
}
}
catch(Exception e)
{
System.out.print(e);
}
}
}

hmm this one is what i was searching since long.Thanks for the help .you solved my query .