Converting Number To Word Java Program

Write a program to input a natural number less than 1000 and display it in words. Test your program on the sample data and some random data.

Sample input and output of the program

Input: 29

Output: TWENTY NINE

Input: 17001

Output: OUT OF RANGE

Input: 119

Output: ONE HUNDRED AND NINETEEN

Input: 500

Output: FIVE HUNDRED

Codes of the program

import java.io.*;

class Program1

{

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

String str="",str1="",str2="";

int h=0,t=0,u=0,i=0,n;

public void takeNumber() throws Exception

{

System.out.println("\nEnter the number:");

n=Integer.parseInt(br.readLine());

if(n< 1 || n >999)

{

System.out.println("\nINVALID ENTRY:");

return;

}

while(true)

{

if(i==0)

u=n%10;

else if(i==1)

t=n%10;

else if(i==2)

h=n%10;

i++;

n=n/10;

if(n==0)

break;

}

if(h!=0)

str=word1(h)+ " HUNDRED ";

if(t >1)

str1= word2(t);

if(t==1)

str2= word3(u);

else

str2=word1(u);

if(!str1.equals("") || !str2.equals(""))

str=str+ "AND ";

if(!str1.equals(""))

str=str+ str1+ " ";

if(!str2.equals(""))

str=str+ str2;

System.out.println(str);

}

String word1(int x)

{

String s="";

switch(x)

{

case 1:

s="ONE";

break;

case 2:

s="TWO";

break;

case 3:

s="THREE";

break;

case 4:

s="FOUR";

break;

case 5:

s="FIVE";

break;

case 6:

s="SIX";

break;

case 7:

s="SEVEN";

break;

case 8:

s="EIGHT";

break;

case 9:

s="NINE";

break;

}

return s;

}

String word2(int x)

{

String s="";

switch(x)

{

case 2:

s="TWENTY";

break;

case 3:

s="THIRTY";

break;

case 4:

s="FOURTY";

break;

case 5:

s="FIFTY";

break;

case 6:

s="SIXTY";

break;

case 7:

s="SEVENTY";

break;

case 8:

s="EIGHTY";

break;

case 9:

s="NINETY";

break;

}

return s;

}

String word3(int x)

{

String s="";

switch(x)

{

case 0:

s="TEN";

break;

case 1:

s="ELEVEN";

break;

case 2:

s="TWELVE";

break;

case 3:

s="THIRTEEN";

break;

case 4:

s="FOURTEEN";

break;

case 5:

s="FIFTEEN";

break;

case 6:

s="SIXTEEN";

break;

case 7:

s="SEVENTEEN";

break;

case 8:

s="EIGHTEN";

break;

case 9:

s="NINETEEN";

break;

}

return s;

}

public static void main(String args[]) throws Exception

 {

Program1 ob=new Program1();

ob.takeNumber();

}

}


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