CUP_수업_20160609_JAVA_복습 GUI 메뉴, 스트림, 특정 문자열을 찾기&바꾸는 메소드(등록, 저장)

문자저장기

GUI.java

MAIN.java

MANAGER.java

선생님이한 등록 저장기

GUI.java

Main.java

Manager.java

VO.java

메뉴바를 달고, 메뉴를 달고, 아이템을 달아야한다!!!!

 

flush

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문자저장기

public class MAIN {

       public static void main(String[] args) {

             // TODO Auto-generated method stub

             new GUI();

            

      }

}

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import java.io.File;

import java.io.FileWriter;

import java.io.IOException;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

public class MANAGER {

      FileOutputStream fos =null ;

      FileWriter fw = null;

      

       // File(): 숫자를 파일을 만들거나 연결시켜준다. 파일을 생성한다.  //FileWriter(); 문자열을 파일로 저장한다.

      

       public void writeMessage(String dir, String contents){    // 디렉토리랑 내용을 가져오면, 해당 디렉토리에 해당 파일명에 내용을 넣을것이다.

                   try {

                         contents=contents .replaceAll("\n", "\r\n");  // .replaceAll: 특정 문자열을 찾기&바꾸는 메소드

                         fw= new FileWriter(dir ); 

                         fw.write( contents);

                         fw.flush();

                  } catch (IOException e1 ) {

                         // TODO Auto-generated catch block

                         e1.printStackTrace();

                  } 

                   try {

                         fw.write( contents);

                  } catch (IOException e ) {

                         // TODO Auto-generated catch block

                         e.printStackTrace();

                  }

      }

      

}

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import java.awt.FileDialog;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JTextField;

import javax.swing.JSeparator;

import javax.swing.JTextArea;

import javax.swing.JMenuBar;

import javax.swing.JMenu;

import javax.swing.JMenuItem;

public class GUI extends JFrame {

       private JTextField textField ;

       private JTextArea textArea ;

       private JMenuItem mntmNewMenuItem ;

       private MANAGER tm ;

      

      

       public GUI() {

             super("텍스트저장기" );

             tm= new MANAGER();  // MANAGER 객체화

            

            getContentPane().setLayout( null);

            

            JLabel label = new JLabel("\uC81C\uBAA9");

             label.setBounds(17, 56, 60, 36);

            getContentPane().add( label);

            

             textField = new JTextField();

             textField.setBounds(74, 61, 570, 27);

            getContentPane().add( textField);

             textField.setColumns(10);

            

            JSeparator separator = new JSeparator();

             separator.setBounds(27, 107, 642, 2);

            getContentPane().add( separator);

            

            JLabel label_1 = new JLabel("\uB0B4\uC6A9");

             label_1.setBounds(17, 124, 60, 36);

            getContentPane().add( label_1);

            

             textArea = new JTextArea();

             textArea.setBounds(74, 133, 570, 332);

            getContentPane().add( textArea);

            

            JMenuBar menuBar = new JMenuBar();

            setJMenuBar( menuBar);

            

            JMenu mnNewMenu = new JMenu("\uBA54\uB274");

             menuBar.add(mnNewMenu );

            

             mntmNewMenuItem = new JMenuItem("\uC800\uC7A5");

             mnNewMenu.add(mntmNewMenuItem );

            

             mntmNewMenuItem.addActionListener(new aListener());

            

            setVisible( true);

            setSize(742,590);

            

      }

      

       public class   aListener implements ActionListener{

            

             @Override

             public void actionPerformed(ActionEvent e){

                  

                   if(e .getActionCommand().equals("저장")){

                        

                        FileDialog fd= new FileDialog(GUI.this ,"파일저장" ,FileDialog.SAVE);   // ()안에 첫번째:아버지가 될 frame,두번째:파일 탐색기 제목, 세번째:모드

                        

                        String content=textArea .getText();

                        String Filename=textField .getText();

                        

//1

                         fd.setFile( Filename+".txt" );   // 이렇게 하면 파일이름을 따로 하지 않아도 된다.

//2

                         fd.setVisible( true);  // 보여줘야하므로, setVisible(true); 를 해줘야함.

//3                     

                        String dir=fd .getDirectory();

                        

                         tm.writeMessage( dir+Filename +".txt" ,content );

                        

                        

                  }

                  

            }

            

      }

}

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등록저장기(보기만 한것)

package test;

public class Main {

    public static void main(String[] args) {

        new GUI();

    }

}

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package test;

public class VO {

    private String name;

    private String age;

    public VO(String name, String age) {

        super();

        this.name = name;

        this.age = age;

    }

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    public String getAge() {

        return age;

    }

    public void setAge(String age) {

        this.age = age;

    }

    @Override

    public String toString() {

        return "이름=" + name + "  나이=" + age;

    }

}

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package test;

import java.io.FileWriter;

import java.io.IOException;

import java.util.ArrayList;

public class Manager {

    private FileWriter fw;

    private ArrayList<VO> alist = new ArrayList<>();

    public ArrayList<VO> getAlist() {

        return alist;

    }

    public void setAlist(ArrayList<VO> alist) {

        this.alist = alist;

    }

    public void addList(VO vo) {

        alist.add(vo);

    }

    public void save(String dir) {

        try {

            fw = new FileWriter(dir);

            fw.write(alist.toString());

            fw.flush();

        } catch (Exception e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }

}

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package test;

import java.awt.FileDialog;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JFrame;

import javax.swing.JMenuBar;

import javax.swing.JMenu;

import javax.swing.JMenuItem;

import javax.swing.JTextField;

import javax.swing.JList;

import javax.swing.JSeparator;

import javax.swing.JLabel;

public class GUI extends JFrame {

    private JTextField textField;

    private JTextField textField_1;

    private JList list;

    private JMenuItem menuItem;

    private JMenuItem menuItem_1;

    private Manager mg;

    public GUI() {

        super("간단등록부");

        mg = new Manager();

        JMenuBar menuBar = new JMenuBar();

        setJMenuBar(menuBar);

        JMenu mnNewMenu = new JMenu("\uBA54\uB274");

        menuBar.add(mnNewMenu);

        menuItem = new JMenuItem("\uC800\uC7A5");

        mnNewMenu.add(menuItem);

        menuItem_1 = new JMenuItem("\uB4F1\uB85D");

        mnNewMenu.add(menuItem_1);

        getContentPane().setLayout(null);

        textField = new JTextField();

        textField.setBounds(72, 29, 116, 21);

        getContentPane().add(textField);

        textField.setColumns(10);

        textField_1 = new JTextField();

        textField_1.setBounds(255, 29, 116, 21);

        getContentPane().add(textField_1);

        textField_1.setColumns(10);

        list = new JList();

        list.setBounds(27, 92, 376, 124);

        getContentPane().add(list);

        JSeparator separator = new JSeparator();

        separator.setBounds(12, 71, 391, 11);

        getContentPane().add(separator);

        JLabel lblNewLabel = new JLabel("\uC774\uB984");

        lblNewLabel.setBounds(12, 32, 57, 15);

        getContentPane().add(lblNewLabel);

        JLabel lblNewLabel_1 = new JLabel("\uB098\uC774");

        lblNewLabel_1.setBounds(200, 32, 57, 15);

        getContentPane().add(lblNewLabel_1);

        menuItem.addActionListener(new alistener());

        menuItem_1.addActionListener(new alistener());

        setSize(446, 301);

        setVisible(true);

    }

    private class alistener implements ActionListener {

        @Override

        public void actionPerformed(ActionEvent e) {

            // TODO Auto-generated method stub

            if (e.getActionCommand().equals("등록")) {

                String name = textField.getText();

                String age = textField_1.getText();

                VO vo = new VO(name, age);

                mg.addList(vo);

                list.setListData(mg.getAlist().toArray());

                textField.setText("");

                textField_1.setText("");

            } else if (e.getActionCommand().equals("저장")) {

                FileDialog fd = new FileDialog(GUI.this, "저장", FileDialog.SAVE);

                fd.setVisible(true);

                String dir = fd.getDirectory();

                String fileName = fd.getFile();

                mg.save(dir + fileName);

            }

        }

    }

}

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