回答編集履歴
1
追記
answer
CHANGED
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@@ -44,4 +44,58 @@
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44
44
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}
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45
45
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46
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}
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47
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-
```
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47
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```
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48
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---
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49
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50
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（追記）
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51
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52
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どのようなプログラムをつなぐかによって書き方は変わってきますが、一例を示します。
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53
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54
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```lang-java
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55
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public final class App extends JFrame {
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56
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57
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Hello hello;
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58
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59
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public App() {
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60
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setTitle("App");
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61
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setDefaultCloseOperation(EXIT_ON_CLOSE);
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62
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JButton button = new JButton("stop");
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63
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button.addActionListener(new ActionListener() {
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64
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@Override
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65
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public void actionPerformed(ActionEvent e) {
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66
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hello.sayHello();
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67
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}
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68
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});
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69
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JPanel p = new JPanel();
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70
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p.add(button);
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71
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add(p);
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72
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this.hello = new Hello("your name");
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73
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}
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74
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75
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public static void main(String[] args) {
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76
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javax.swing.SwingUtilities.invokeLater(new Runnable() {
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77
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public void run() {
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78
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App app = new App();
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79
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app.setSize(300, 100);
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80
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app.setLocationRelativeTo(null);
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81
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app.setVisible(true);
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82
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}
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83
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});
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84
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}
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85
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86
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}
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87
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88
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final class Hello {
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89
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90
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private final String name;
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91
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92
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Hello(String name) {
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93
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this.name = name;
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94
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}
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95
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96
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void sayHello() {
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97
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System.out.println("Hello, " + name);
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98
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}
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99
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100
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}
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101
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```
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