lec27Pjt004 MainClass0041에서 EOF익셉션

java.io.EOFException

at java.io.DataInputStream.readFully(Unknown Source)

at java.io.DataInputStream.readUTF(Unknown Source)

at java.io.DataInputStream.readUTF(Unknown Source)

at DataStream_copy.MainClass.main(MainClass.java:24)

이렇게 오류가 뜹니다.

        input = new FileInputStream("D:\\JAVA_inflearn\\project\\hi_DataStream.txt");
        dataInput = new DataInputStream(input);
        String str = null;
        str = dataInput.readUTF();
        output = new FileOutputStream("D:\\JAVA_inflearn\\project\\hi_DataStream_copy.txt");
        dataOutput = new DataOutputStream(output);
        dataOutput.writeUTF(str);