/*Assignment#1 ICS 211 
 * Instr:Dr. Jan Stelovsky
 * TA: John Wu
 * Student/Author: Jon Lai
 * Wednesday Lab
 */
import java.util.ArrayList;
import java.util.Scanner;

public class Assignment1 
{
	public static void main(String[] args) 
	{
		char[] ASCarray = new char[127];
		// Creating an array and inputing all values using a for loop
		for(int i=0; i< ASCarray.length; i++)
		{
			ASCarray[i] = (char)i;
		}
		
		ArrayList<Integer> storedInputsInt = new ArrayList<Integer>();
		for(int userInput = 1; userInput > -1;)  //break loop set to neg #
		{
			Scanner inputNum = new Scanner(System.in);
			System.out.println("ASCII number within 0 and 127: (neg# to index)");
			//error checking if input is not an int will quit
			if(!inputNum.hasNextInt()){return;}
			userInput = inputNum.nextInt();
			if (userInput < 0) break;
			if (userInput > -1 && userInput < 33) 					
			// Boundaries set to add input only when input is within 0 to 127
			{
				System.out.println("Character Symbol: " + userInput + "C");
				storedInputsInt.add(userInput);
			}
			else if (userInput <127)
			{
				System.out.println("Character Symbol: " + ASCarray[userInput]);
				storedInputsInt.add(userInput);
			}
		}
		//array of inputs as characters
		ArrayList<String> storedInputsStr = new ArrayList<String>();
		for(int i =0; i < storedInputsInt.size(); i++){
			int value = storedInputsInt.get(i);
			if(value < 33)
			{
			storedInputsStr.add(value + "C"); 
			}
			else if (value < 127 && value >= 33)
			storedInputsStr.add(ASCarray[value] + ""); 
		}
		//Building array with 4 Strings and array once 
		String[] fourStrings = new String[4];
		String digitS = new String("Your digits are: ");
		String lowerS = new String("Your lower case letters are: ");
		String upperS = new String ("Your upper case letters are: ");
		String specialS = new String("Your special characters are: ");
		for (int i =0; i < storedInputsInt.size(); i++)
		{
			int value = storedInputsInt.get(i); 
			
			if (value >= 48 && value <= 57) 
			{
				char number = (char) value;
				digitS += number + " ";			
				// added space at end of each String input to improve display
			}
			else if(value >= 97 && value <= 122) 
			{
				char lowerNum = (char) value;
				lowerS += lowerNum + " ";
			}
			else if (value >= 65 && value <= 90) 
			{
				char upperNum = (char) value;
				upperS += upperNum + " ";
			}
			else if(value >= 33 && value <= 47 || value >= 58 && value <= 64 
						|| value >= 91 && value <= 96 || value >= 123 && value <= 126)
			{
				char special = (char) value;
				specialS += special + " ";
			}		
			// numbers for which special characters need a 'C'
			else if(value >= 0 && value <33)	
			{
				specialS += value + "C ";
			}
		}
		//Enter values into array after completion of Strings in for loop to reduce input amount
		fourStrings[0] = digitS;
		fourStrings[1] = lowerS;
		fourStrings[2] = upperS;
		fourStrings[3] = specialS;
		
		System.out.println("Conversions requested: " + storedInputsInt + "\nConversion results: " 
				+ storedInputsStr);
		for(String value : fourStrings)
			System.out.println(value);
		
		}
	}