package fixjava;

public class StringUtils {

	/** Repeat the given string the requested number of times. */
	public static String repeat(String str, int numTimes) {
		StringBuilder buf = new StringBuilder(Math.max(0, str.length() * numTimes));
		for (int i = 0; i < numTimes; i++)
			buf.append(str);
		return buf.toString();
	}

	/**
	 * Pad the left hand side of a field with the given character. Always adds at least one pad character. If the length of str is
	 * greater than numPlaces-1, then the output string will be longer than numPlaces.
	 */
	public static String padLeft(String str, char padChar, int numPlaces) {
		int bufSize = Math.max(numPlaces, str.length() + 1);
		StringBuilder buf = new StringBuilder(Math.max(numPlaces, str.length() + 1));
		buf.append(padChar);
		for (int i = 1, mi = bufSize - str.length(); i < mi; i++)
			buf.append(padChar);
		buf.append(str);
		return buf.toString();
	}

	/**
	 * Pad the right hand side of a field with the given character. Always adds at least one pad character. If the length of str is
	 * greater than numPlaces-1, then the output string will be longer than numPlaces.
	 */
	public static String padRight(String str, char padChar, int numPlaces) {
		int bufSize = Math.max(numPlaces, str.length() + 1);
		StringBuilder buf = new StringBuilder(Math.max(numPlaces, str.length() + 1));
		buf.append(str);
		buf.append(padChar);
		while (buf.length() < bufSize)
			buf.append(padChar);
		return buf.toString();
	}

	/** Intern all strings in an array, skipping null elements. */
	public static String[] intern(String[] arr) {
		for (int i = 0; i < arr.length; i++)
			arr[i] = arr[i].intern();
		return arr;
	}

	/** Intern a string, ignoring null */
	public static String intern(String str) {
		return str == null ? null : str.intern();
	}

}

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;

public class Tools<T>
{

	public static ArrayList<String[]> getInput(String filename) throws IOException
	{
		BufferedReader br = new BufferedReader(new FileReader(filename));

		ArrayList<String[]> output = new ArrayList<String[]>();

		String line;
		while ((line = br.readLine()) != null)
			output.add(line.split(" "));

		br.close();
		return output;
	}
	
	public static ArrayList<String> getInputSingle(String filename) throws IOException
	{
		BufferedReader br = new BufferedReader(new FileReader(filename));

		ArrayList<String> output = new ArrayList<String>();

		String line;
		while ((line = br.readLine()) != null)
			output.add(line);

		br.close();
		return output;
	}

	public static void saveOutput(String filename, ArrayList<String[]> output) throws IOException
	{
		BufferedWriter bw = new BufferedWriter(new FileWriter(filename));
		
		for(int i=0; i<output.size();i++)
		{
			if(i!=0) bw.newLine();
			for(int j=0;j<output.get(i).length;j++)
			{
				if(j!=0) bw.write(" ");
				bw.write(output.get(i)[j]);				
			}
		}
		
		bw.close();
	}
	
	public static void saveOutputSingle(String filename, ArrayList<String> output) throws IOException
	{
		BufferedWriter bw = new BufferedWriter(new FileWriter(filename));
		
		for(int i=0; i<output.size();i++)
		{
			if(i!=0) bw.newLine();
			bw.write(output.get(i));	
		}
		
		bw.close();
	}
}
