115 lines
4.0 KiB
Java
115 lines
4.0 KiB
Java
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Program for converting numbers in a file to corresponding words
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import java.io.*;
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import java.lang.*;
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class NumToWords
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{
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public static void main(String a[]) throws IOException
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{
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String s="";
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BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
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System.out.print("Enter filename : ");
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try
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{
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s=br.readLine();
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}catch(Exception e){}
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InputStream in=new FileInputStream(s);
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MyInputStream mis=new MyInputStream(in);
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mis.changeNumbers();
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in.close();
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mis.close();
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}
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}
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class MyInputStream extends FilterInputStream
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{
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InputStream is;
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MyInputStream(InputStream in)
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{
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super(in);
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is=in;
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}
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public void changeNumbers() throws IOException
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{
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PushbackInputStream pis;
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String num="";
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char ch;
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int c;
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pis=new PushbackInputStream(is);
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while((c=pis.read())!=-1)
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{
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ch=(char)c;
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if('0'<=ch&&ch<='9')
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{
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num="";
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while('0'<=ch&&ch<='9'&&c!=-1)
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{
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num=num+ch;
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c=pis.read();
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ch=(char)c;
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}
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System.out.print(MyInputStream.process(num));
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pis.unread(ch);
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}
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else
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System.out.print(ch);
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}
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}
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static String process(String str)
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{
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String a1[]={"One","Two","Three","Four","Five","Six","Seven","Eight","Nine"};
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String a2[]={"Twenty","Thirty","Fourty","Fifty","Sixty","Seventy","Eighty","Ninety"};
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String a3[]={"Ten","Eleven","Twelve","Thirteen","Fourteen","Fifteen","Sixteen","Seventeen","Eighteen","Nineteen"};
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String a4[]={"Hundered","Thousand","Lakhs","Crores"};
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int num=0;
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try
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{
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num=Integer.parseInt(str);
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}catch(Exception e){}
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if(num==0)
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return "Zero";
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int n,n1;
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String ans="";
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String ans1="";
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n1=num%10;
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num=num/10;
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if(n1!=0)
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ans=a1[n1-1];
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if(num>0)
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{
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n=num%10;
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num=num/10;
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if(n==1)
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ans=a3[n1];
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else if(n!=0)
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ans=a2[n-2]+" "+ans;
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}
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if(num>0)
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{
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n=num%10;
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num=num/10;
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if(n!=0)
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ans=a1[n-1]+" "+a4[0]+" "+ans;
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}
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for(int i=1;num>0;i++)
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{
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n1=num%10;
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num=num/10;
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if(n1!=0)
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ans1=a1[n1-1];
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if(num>0)
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{
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n=num%10;
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num=num/10;
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if(n==1)
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ans1=a3[n1];
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else if(n!=0)
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ans1=a2[n-2]+" "+ans1;
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}
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ans=ans1+" "+a4[i]+" "+ans;
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ans1="";
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}
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return(ans);
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}
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}
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