java.file

			String name[] = { "홍길동", "성춘향", "일지매" };

			File file = new File("c:\\myfile\\names.txt");		

			try {
				FileWriter fw = new FileWriter(file);
				BufferedWriter bw = new BufferedWriter(fw);
				PrintWriter pw = new PrintWriter(bw);

				for (int i = 0; i < name.length; i++) {
					pw.println(name[i]);
				}
				pw.close();

			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

			String student[] = null;
			int count = 0;
			String str;
			try {

				// 데이터의 갯수를 파악
				BufferedReader br = new BufferedReader(new FileReader(file));						
				while((str = br.readLine()) != null) {
					count++;
				}

			//	System.out.println(count);
				student = new String[count];
				int n = 0;

				br = new BufferedReader(new FileReader(file));
				// 실제의 데이터의 저장
				while((str = br.readLine()) != null) {
					student[n] = str;
					n++;
				}			

			} catch (FileNotFoundException e) {			
				e.printStackTrace();
			} catch (IOException e) {			
				e.printStackTrace();
			}

			for (int i = 0; i < student.length; i++) {
				System.out.println(student[i]);
			}

			// -----------------------------------------------------------------------


			String human[] = { "홍길동", "24", "서울시" };

			// 파일에 저장 -> println 을 한번 사용해서 저장. 	"홍길동24서울시" 
			// 파일에서 불러오기 -> 배열 [0] -> 이름 [1] -> 나이 [2] -> 주소 

			File file1 = new File("c:\\myfile\\member.txt");	
			try {
				PrintWriter pw1 = new PrintWriter(new BufferedWriter(new FileWriter(file1)));

				String str1 = human[0] + "-" + human[1] + "-" + human[2]; // 홍길동-24-서울시
				pw1.println(str1);

				pw1.close();

			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

			String mem = "";
			try {
				BufferedReader br1 = new BufferedReader(new FileReader(file1));

				String str2;			
				while((str2 = br1.readLine()) != null) {
					mem = str2;
				}			
				br1.close();

			} catch (FileNotFoundException e) {			
				e.printStackTrace();
			} catch (IOException e) {			
				e.printStackTrace();
			}	 

			System.out.println(mem);		
			String split[] = mem.split("-");		
			System.out.println(Arrays.toString(split));