tillnow.java

package hw1.rwFileSystemFile;


import java.io.BufferedReader;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;

public class ReadFile {
	
	final static Charset ENCODING = StandardCharsets.UTF_8;
	
	
	public static String[] readTextFile(String aFileName) throws IOException {
		    Path path = Paths.get(aFileName);
		    ArrayList<String> classIDs = new ArrayList<String>();
		    try (BufferedReader reader = Files.newBufferedReader(path, ENCODING)){
		      String line = null;
		      while ((line = reader.readLine()) != null) {
		        classIDs.add(line);
		      }      
		    }
		    String[] strIDArray = classIDs.toArray(new String[classIDs.size()]);
		    return strIDArray;
	}
	
}