readin.java

三种字符串匹配：BF

package patternMatching;
import java.io.*;
public class ReadIn{
	public static String readIn(String fileName){
		String line;
		StringBuilder result = new StringBuilder();
		//fileName = "Dic.txt";
		try{
			BufferedReader buff = new BufferedReader( new InputStreamReader(new FileInputStream(fileName)));
			while ((line = buff.readLine()) != null){
				result.append(line);
			}
			buff.close();
		}
		catch (FileNotFoundException ex){
			ex.printStackTrace();
		}
		catch (IndexOutOfBoundsException ex){
			ex.printStackTrace();
		} 
		catch (IOException ex){
			ex.printStackTrace();
		} 
		
		return result.toString();
		//return result.toString();
	}

}