Simple question

oopss.. sorry..^_^ this problem given to me requires me to have a constructor.. i know i could finish it without a construction.. but i must follow the rules.. anyway here it is.. its still incomplete though

import java.util.*;

public class ConvertRoman {

public static void main(String args[])throws Exception{

HashMap values = new HashMap();

values.put(new Character('M'), new Integer(1000));

values.put(new Character('D'), new Integer(500));

values.put(new Character('C'), new Integer(100));

values.put(new Character('L'), new Integer(50));

values.put(new Character('X'), new Integer(10));

values.put(new Character('V'), new Integer(5));

values.put(new Character('I'), new Integer(1));

Scanner kybd = new Scanner(System.in);

String number;

System.out.println("Input Roman or Arabic number to convert:");

System.out.println();

number = kybd.nextLine();

number = number.toUpperCase();

for(int x = 0; x < number.length();x++){

if((int)number.charAt(x) > 47 && (int)number.charAt(x)<58) {

RomanNum passval = new RomanNum(Integer.parseInt(number));

}

{

}

}

}

class RomanNum {

public RomanNum(int convert){

try

{if(convert > 3999 && convert < 1)

{

throw new NumberFormatException();

}

}catch(NumberFormatException a){

System.out.println("Integer value to big to convert to Roman Numeral!");

}

}

}

forgive my incompetence.. ^_^

Arch_Bytesa at 2007-7-9 21:28:20 >

public class Construct {

public Construct() {

try {

public void method() {

// code

}

} catch (Exception e) {

// TODO: handle exception

}

}

}

like that? no. you can't create methods inside a method or a constructor.

albertsesea at 2007-7-9 21:28:21 >

this has stomped me..

i am already able to convert Arabic Numbers to Roman numerals.. but im having hard time converting Roman Numerals to Arabic..

this is what ive got so far

static int toInteger(String roman){//my method that does the converting

int NewValue = 0;

HashMap values = new HashMap();

values.put(new Character('M'), new Integer(1000));

values.put(new Character('D'), new Integer(500));

values.put(new Character('C'), new Integer(100));

values.put(new Character('L'), new Integer(50));

values.put(new Character('X'), new Integer(10));

values.put(new Character('V'), new Integer(5));

values.put(new Character('I'), new Integer(1));

for(int x = 0; x < roman.length(); x++){

if(values.containsKey((Character)roman.charAt(x))) { //this is where it fails..

//it says that it cannot cast from char to Character..

//but the containsKey function needs

//an object parameter.. how do i go about that?

}

}

return NewValue;

}

thanks in advance^_^

Arch_Bytesa at 2007-7-9 21:28:21 >