If the user enters it, it will already be in String form. Normally to convert an integer (say x) to a String, you can just use: String s = "" + x; and to convert a String to an integer: x = Integer.parseInt(s);
He needs to turn: 32 -> thirty-two 75 -> seventy-five It's not too complicated. You can use the String method toCharArray to convert the string to an array of chars. Then you need to work your way through the array. A clever way to do it would be to have an array for each unit: String[] tens = {"ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety"} Don't forget that most of the entries in the "ten" group need to be handled differently (thirteen not ten-three).
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