Convert numbers to word in java

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"); 
}
}