Convert numbers to word as per Indian number system in java

This java program converts the number to its equivalent word representation according to indian numbering system. Eg. Lakhs, Crores etc..This program works upto 999999999.

import java.util.*;
public class NumtoWord 
{ 
public static void main(String[] args) 
{ 
String a;
Scanner s = new Scanner(System.in);
System.out.print("Enter a Number : ");
a = s.next();
int b = a.length();
String str[] = {"1","One","2","Two","3","Three","4","Four","5","Five","6","Six","7","Seven","8","Eight","9","Nine","10","Ten","11","Eleven","12","Twelve","13","Thirteen","14","Forteen","15","Fifteen","16","Sixteen","17","Seventeen","18","Eighteen","19","Nineteen","20","Twenty","30","Thirty","40","Fourty","50","Fifty","60","Sixty","70","Seventy","80","Eighty","90","Ninty","100","Hundred"};
System.out.println("");
if (b==9) 
{ 
String s1= a.substring(0,1);
String s2= a.substring(1,2);
String s3= a.substring(2,3);
String s4= a.substring(3,4);
String s5= a.substring(4,5);
String s6= a.substring(5,6);
String s7= a.substring(6,7);
String s8= a.substring(7,8);
String s9= a.substring(8,9);
String s10= a.substring(0,2);
String s11= a.substring(2,4);
String s12= a.substring(4,6);
String s14= a.substring(7,9);
{
if (s10.equals("00"))
System.out.print("");
else if (s1.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s10)) 
System.out.print("\n" + str[r+1] + " Crore ");
}
else
{
{
for (int i=0;i<=40;i++)
if (str[i].equals(s1))
System.out.print("\n" + str[i+37] + " ");
}
{
if(s2.equals("0"))
{
System.out.print("Crore ");
}
else 
for (int j=0;j<=40;j++)
{
if (str[j].equals(s2))
System.out.print(str[j+1] + " Crore ");
}
}
}
}
{
if (s11.equals("00"))
System.out.print("");
else if (s3.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s11)) 
System.out.print(str[r+1] + " Lacks ");
}
else
{
{
for (int k=0;k<=38;k++)
if (str[k].equals(s3))
System.out.print(str[k+37] + " ");
}
{
if(s4.equals("0"))
{
System.out.print("Lacks ");
}
else 
for (int l=0;l<=38;l++)
{
if (str[l].equals(s4))
System.out.print(str[l+1] + " Lacks ");
}
}
}
}
{
if (s12.equals("00"))
System.out.print("");
else if (s5.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s12)) 
System.out.print(str[r+1] + " Thousand ");
}
else
{ 
{
for (int m=0;m<=38;m++)
if (str[m].equals(s5))
System.out.print(str[m+37] + " ");
}
{
if(s6.equals("0"))
{
System.out.print("Thousand ");
}
else 
for (int n=0;n<=38;n++)
{
if (str[n].equals(s6))
System.out.print(str[n+1] + " Thousand ");
}
}
}
}
{
for (int o=0;o<=40;o++)
if (str[o].equals(s7))
System.out.print(str[o+1] + " Hundred ");
}
{
if (s14.equals("00"))
System.out.print("");
else if (s8.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s14)) 
System.out.print(str[r+1]);
System.out.print("\n"); 
}
else
{
for (int p=0;p<=40;p++)
if (str[p].equals(s8))
System.out.print(str[p+37]);
for (int q=0;q<=40;q++)
{
if (str[q].equals(s9))
System.out.print(" " + str[q+1]);
}
} 
System.out.print("\n"); 
}
}
else if (b==8) 
{ 
String s1= a.substring(0,1);
String s2= a.substring(1,2);
String s3= a.substring(2,3);
String s4= a.substring(3,4);
String s5= a.substring(4,5);
String s6= a.substring(5,6);
String s7= a.substring(6,7);
String s8= a.substring(7,8);
String s10= a.substring(1,3);
String s11= a.substring(3,5);
String s12= a.substring(6,8);
{
if (s1.equals("0"))
System.out.print("");
else
for (int i=0;i<=40;i++)
if (str[i].equals(s1))
System.out.print("\n" + str[i+1] + " Crore ");
} 
{
if (s10.equals("00"))
System.out.print("");
else if (s2.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s10)) 
System.out.print(str[r+1] + " Lacks ");
}
else
{
{
for (int k=0;k<=38;k++)
if (str[k].equals(s2))
System.out.print(str[k+37] + " ");
}
{
if(s3.equals("0"))
{
System.out.print("Lacks ");
}
else 
for (int l=0;l<=38;l++)
{
if (str[l].equals(s3))
System.out.print(str[l+1] + " Lacks ");
}
}
}
}
{
if (s11.equals("00"))
System.out.print("");
else if (s4.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s11)) 
System.out.print(str[r+1] + " Thousand ");
}
else
{ 
{
for (int m=0;m<=38;m++)
if (str[m].equals(s4))
System.out.print(str[m+37] + " ");
}
{
if(s5.equals("0"))
{
System.out.print("Thousand ");
}
else 
for (int n=0;n<=38;n++)
{
if (str[n].equals(s5))
System.out.print(str[n+1] + " Thousand ");
}
}
}
}
{
for (int o=0;o<=40;o++)
if (str[o].equals(s6))
System.out.print(str[o+1] + " Hundred ");
}
{
if (s12.equals("00"))
System.out.print("");
else if (s7.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s12)) 
System.out.print(str[r+1]);
System.out.print("\n"); 
}
else
{
for (int p=0;p<=40;p++)
if (str[p].equals(s7))
System.out.print(str[p+37]);
for (int q=0;q<=40;q++)
{
if (str[q].equals(s8))
System.out.print(" " + str[q+1]);
}
} 
System.out.print("\n"); 
}
}
else if (b==7) 
{ 
String s1= a.substring(0,1);
String s2= a.substring(1,2);
String s3= a.substring(2,3);
String s4= a.substring(3,4);
String s5= a.substring(4,5);
String s6= a.substring(5,6);
String s7= a.substring(6,7);
String s10= a.substring(0,2);
String s11= a.substring(2,4);
String s12= a.substring(5,7);
{
if (s10.equals("00"))
System.out.print("");
else if (s1.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s10)) 
System.out.print(str[r+1] + " Lacks ");
}
else
{
{
for (int k=0;k<=38;k++)
if (str[k].equals(s1))
System.out.print(str[k+37] + " ");
}
{
if(s2.equals("0"))
{
System.out.print("Lacks ");
}
else 
for (int l=0;l<=38;l++)
{
if (str[l].equals(s2))
System.out.print(str[l+1] + " Lacks ");
}
}
}
}
{
if (s11.equals("00"))
System.out.print("");
else if (s3.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s11)) 
System.out.print(str[r+1] + " Thousand ");
}
else
{ 
{
for (int m=0;m<=38;m++)
if (str[m].equals(s3))
System.out.print(str[m+37] + " ");
}
{
if(s4.equals("0"))
{
System.out.print("Thousand ");
}
else 
for (int n=0;n<=38;n++)
{
if (str[n].equals(s4))
System.out.print(str[n+1] + " Thousand ");
}
}
}
}
{
for (int o=0;o<=40;o++)
if (str[o].equals(s5))
System.out.print(str[o+1] + " Hundred ");
}
{
if (s12.equals("00"))
System.out.print("");
else if (s6.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s12)) 
System.out.print(str[r+1]);
System.out.print("\n"); 
}
else
{
for (int p=0;p<=40;p++)
if (str[p].equals(s6))
System.out.print(str[p+37]);
for (int q=0;q<=40;q++)
{
if (str[q].equals(s7))
System.out.print(" " + str[q+1]);
}
} 
System.out.print("\n"); 
}
}
else if (b==6) 
{ 
String s1= a.substring(0,1);
String s2= a.substring(1,2);
String s3= a.substring(2,3);
String s4= a.substring(3,4);
String s5= a.substring(4,5);
String s6= a.substring(5,6);
String s10= a.substring(1,3);
String s11= a.substring(4,6);

{
if(s1.equals("0"))
System.out.print("");
else 
{
for (int j=0;j<=40;j++)
if (str[j].equals(s1)) 
System.out.print(str[j+1] + " Lacks ");
}
}
{
if (s10.equals("00"))
System.out.print("");
else if (s2.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s10)) 
System.out.print(str[r+1] + " Thousand ");
}
else
{ 
{
for (int m=0;m<=40;m++)
if (str[m].equals(s2))
System.out.print(str[m+37] + " ");
}
{
if(s3.equals("0"))
{
System.out.print("Thousand ");
}
else 
for (int n=0;n<=38;n++)
{
if (str[n].equals(s3))
System.out.print(str[n+1] + " Thousand ");
}
}
}
}
{
if(s4.equals("0"))
System.out.print("");
else 
{
for (int o=0;o<=40;o++)
if (str[o].equals(s4)) 
System.out.print(str[o+1] + " Hundred ");
}
}
{
if (s11.equals("00"))
System.out.print("");
else if (s5.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s11)) 
System.out.print(str[r+1]);
System.out.print("\n"); 
}
else
{
for (int p=0;p<=40;p++)
if (str[p].equals(s5))
System.out.print(str[p+37]);
for (int q=0;q<=40;q++)
{
if (str[q].equals(s6))
System.out.print(" " + str[q+1]);
}
} 
System.out.print("\n"); 
}
}
else if (b==5) 
{ 
String s1= a.substring(0,1);
String s2= a.substring(1,2);
String s3= a.substring(2,3);
String s4= a.substring(3,4);
String s5= a.substring(4,5);
String s10= a.substring(0,2);
String s11= a.substring(3,5);
{
if (s10.equals("00"))
System.out.print("");
else if (s1.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s10)) 
System.out.print(str[r+1] + " Thousand ");
}
else
{ 
{
for (int m=0;m<=38;m++)
if (str[m].equals(s1))
System.out.print(str[m+37] + " ");
}
{
if(s2.equals("0"))
{
System.out.print("Thousand ");
}
else 
for (int n=0;n<=38;n++)
{
if (str[n].equals(s2))
System.out.print(str[n+1] + " Thousand ");
}
}
}
}
{
for (int o=0;o<=40;o++)
if (str[o].equals(s3))
System.out.print(str[o+1] + " Hundred ");
}
{
if (s11.equals("00"))
System.out.print("");
else if (s4.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s11)) 
System.out.print(str[r+1]);
System.out.print("\n"); 
}
else
{
for (int p=0;p<=40;p++)
if (str[p].equals(s4))
System.out.print(str[p+37]);
for (int q=0;q<=40;q++)
{
if (str[q].equals(s5))
System.out.print(" " + str[q+1]);
}
} 
System.out.print("\n"); 
}
}
else if (b==4) 
{ 
String s1= a.substring(0,1);
String s2= a.substring(1,2);
String s3= a.substring(2,3);
String s4= a.substring(3,4);
String s10= a.substring(2,4);
{
if(s1.equals("0"))
System.out.print("");
else 
{
for (int j=0;j<=40;j++)
if (str[j].equals(s1)) 
System.out.print(str[j+1] + " Thousand ");
}
}
{
if(s2.equals("0"))
System.out.print("");
else 
{
for (int o=0;o<=40;o++)
if (str[o].equals(s2)) 
System.out.print(str[o+1] + " Hundred ");
}
}
{
if (s10.equals("00"))
System.out.print("");
else if (s3.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s10)) 
System.out.print(str[r+1]);
System.out.print("\n"); 
}
else
{
for (int p=0;p<=40;p++)
if (str[p].equals(s3))
System.out.print(str[p+37]);
for (int q=0;q<=40;q++)
{
if (str[q].equals(s4))
System.out.print(" " + str[q+1]);
}
} 
System.out.print("\n"); 
}
}
else if (b==3) 
{ 
String s1= a.substring(0,1);
String s2= a.substring(1,2);
String s3= a.substring(2,3);
String s10= a.substring(1,3);
{
if(s1.equals("0"))
System.out.print("");
else 
{
for (int o=0;o<=40;o++)
if (str[o].equals(s1)) 
System.out.print(str[o+1] + " Hundred ");
}
}
{
if (s10.equals("00"))
System.out.print("");
else if (s2.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s10)) 
System.out.print(str[r+1]);
System.out.print("\n"); 
}
else
{
for (int p=0;p<=40;p++)
if (str[p].equals(s2))
System.out.print(str[p+37]);
for (int q=0;q<=40;q++)
{
if (str[q].equals(s3))
System.out.print(" " + str[q+1]);
}
} 
System.out.print("\n"); 
}
}
else if (b==2) 
{ 
String s1= a.substring(0,1);
String s2= a.substring(1,2);
String s10= a.substring(0,2);
{
if (s10.equals("00"))
System.out.print("");
else if (s1.equals("1"))
{
for (int r=0;r<=40;r++)
if (str[r].equals(s10)) 
System.out.print(str[r+1]);
System.out.print("\n"); 
}
else
{
for (int p=0;p<=40;p++)
if (str[p].equals(s1))
System.out.print(str[p+37]);
for (int q=0;q<=40;q++)
{
if (str[q].equals(s2))
System.out.print(" " + str[q+1]);
}
} 
System.out.print("\n"); 
}
}
else if (b==1) 
{ 
String s1= a.substring(0,1);
for (int q=0;q<=40;q++)
if (str[q].equals(s1))
System.out.print(" " + str[q+1]);
} 
System.out.println("\n"); 
}
}