Converting Words to Numbers in Java

Question

I have seen a lot of algorithms in which you give them a number say \"123\" and it converts it to One hundred twenty three. But i can\'t seem to find something that does the

Answer 1

Okay, I think I've gotten something.

There is a variable called 'debug', when the number produces doesn't work like it should please set this to true and do the following things:
1) Give me the string you used and the number you expected
2) Give me the log it produces
3) Be patient

If you want numbers above 1 trillion (which I can't imagine, but well) please tell me what that number is called ;)

The code:

    boolean debug=true;
    String word="";

    // All words below and others should work
    //word="One thousand two hundred thirty four"; //1234
    //word="Twenty-one hundred thirty one"; //2131
    //word="Forty-three thousand seven hundred fifty one"; //43751
    //word="Nineteen thousand eighty"; // 19080
    //word="five-hundred-forty-three thousand two hundred ten"; //543210
    //word="ninety-eight-hundred-seventy-six thousand"; // 9876000

    // Max:
    word="nine-hundred-ninety-nine trillion nine-hundred-ninety-nine billion nine-hundred-ninety-nine million nine-hundred-ninety-nine thousand nine hundred ninety nine";


    word=word.toLowerCase().trim();

    String oldWord="";
    while(word!=oldWord) {
        oldWord=word;
        word=word.replace("  "," ");
    }

    String[] data=word.split(" ");

    HashMap database=new HashMap();
    database.put("zero", 0L);
    database.put("one", 1L);
    database.put("two", 2L);
    database.put("three", 3L);
    database.put("four", 4L);
    database.put("five", 5L);
    database.put("six", 6L);
    database.put("seven", 7L);
    database.put("eight", 8L);
    database.put("nine", 9L);

    database.put("ten", 10L);
    database.put("hundred", 100L);
    database.put("thousand", 1000L);
    database.put("million", 1000000L);
    database.put("billion", 1000000000L);
    database.put("trillion", 1000000000000L);

    // Exceptional prefixes
    database.put("twen", 2L);
    database.put("thir", 3L);
    database.put("for", 4L);
    database.put("fif", 5L);
    database.put("eigh", 8L);

    // Other exceptions
    database.put("eleven", 11L);
    database.put("twelve", 12L);


    boolean negative=false;
    long sum=0;
    for(int i=0; ii+1)
                    if(database.get(data[i+1])%10!=0)
                        i--;
                    else
                        second=database.get(data[i+1]);
            } else if(data[i].contains("-")){
                String[] moreData=data[i].split("-");

                long a=0;
                long b=0;

                if(moreData[0].endsWith("ty")) {
                    a=database.get(moreData[0].split("ty")[0])*10;
                } else {
                    a=database.get(moreData[0]);
                }

                if(debug) System.out.println("a="+a);

                b=database.get(moreData[1]);
                if(b%10==0)
                    first=a*b;
                else
                    first=a+b;

                if(debug) System.out.println("b="+b);

                if(moreData.length>2) {
                    for(int z=2; z

Let me know if it works and don't forget to give feedback. (Both positive and negative)
Happy coding :) -Charlie PS: My native language isn't English, but this works as I should write numbers. Let me know if it isn't!