Stage2

src/editor/ApplicationRunner.java

@@ -2,6 +2,7 @@
 
 public class ApplicationRunner {
     public static void main(String[] args) {
-        new TextEditor();
+         TextEditor app = new TextEditor();
+        app.setVisible(true);
     }
 }

src/editor/TextEditor.java

@@ -3,9 +3,86 @@
 import javax.swing.*;
 
 public class TextEditor extends JFrame {
+  private JTextField input = new JTextField("", 5);
+    private JButton loadbutton = new JButton("Load");
+    private JButton savebutton = new JButton("Save");
+    private JTextArea textArea = new JTextArea();
+    private String filename = null;
+
+
+
     public TextEditor() {
-        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
-        setSize(300, 300);
-        setVisible(true);
+
+        //устанавлиаем параметры основного окна
+        super("Text Editor");
+        this.setSize(500, 400);
+        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        //устанавливаем размеры компонентов
+
+        this.input.setSize(250, 30);
+        this.input.setLocation(20, 30);
+        this.loadbutton.setBounds(260, 30, 100, 30);
+        this.savebutton.setBounds(360, 30, 100, 30);
+
+        //TextArea
+
+        this.textArea.setLineWrap(true);
+        this.textArea.setWrapStyleWord(true);
+
+        JScrollPane scrollPane = new JScrollPane(textArea);
+        scrollPane.setBounds(20, 60, 440, 280);
+
+        //устанавливаем слушатель на кнопки и поля
+
+        input.addActionListener(e -> {
+            this.filename = input.getText();
+        });
+        loadbutton.addActionListener(e -> {
+           File file = new File(this.filename.toLowerCase());
+
+            try {
+                Scanner scanner = new Scanner(file);
+                String text = "";
+                while (scanner.hasNextLine()){
+                    String line = scanner.nextLine();
+                    text=text+ line+ "\n";
+                }
+
+                textArea.setText(text);
+            } catch (FileNotFoundException e1) {
+                e1.printStackTrace();
+            }
+        });
+        savebutton.addActionListener(e -> {
+
+            File file = new File(this.filename);
+           String alltext = this.textArea.getText();
+           String [] strings = alltext.split("\n");
+
+            try {
+                FileWriter writer = new FileWriter(file);
+                for(int i = 0; i < strings.length; i ++){
+                    writer.write(strings[i]);
+                    writer.write("\n");
+                }
+
+                writer.close();
+            } catch (IOException e1) {
+                e1.printStackTrace();
+            }
+
+
+        });
+
+        //складываем все в контейнер
+        Container container = this.getContentPane();
+        container.add(savebutton);
+        container.add(loadbutton);
+        container.add(input);
+
+        this.getContentPane().add(scrollPane);
+        container.setLayout(new BorderLayout());
+
     }
-}
+}
+