public class CountLineOfTextFile { public static void main(String[] args) { int lineCnt = 0; JFileChooser fc = new JFileChooser(); fc.showOpenDialog(null); File file = fc.getSelectedFile(); try { BufferedReader in = new BufferedReader(new FileReader(file)); while(in.readLine() != null) lineCnt++; } catch(Exception ex) {ex.printStackTrace();} System.out.println(lineCnt); } }
public class Frame extends JFrame { public Frame() { setTitle("Control wheel speed of JScrollPane"); setSize(500, 500); getContentPane().setLayout(null); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JScrollPane jsp = new JScrollPane(); jsp.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER); jsp.getVerticalScrollBar().setUnitIncrement(16);//스크롤 속도 jsp.setBorder(null);..