按钮没有放在我告诉它们的位置。

huangapple
go评论109阅读模式
英文:

Buttons are not being place where I tell them

问题

以下是您要翻译的内容：

"So I was trying to place 10 buttons in a grid at the bottom of my frame (without using a layout manager) and for some reason I cannot figure out why this isn't working, I was wondering if anyone could help.

I should probably explain the code:

Basically I have just created a loop that stores a 'while' in it, this while is repeated 3 times before ending and going back to the loop. After the while is finished, the Y changes by 85 to start a new layer for the next 3 buttons. The loop repeats 4 times to create 4 different layers of 10 buttons.

Thanks!

Main

  1. public class Main {
  3. 	private static JFrame frame = new JFrame();
  4. 	private static JPanel panel = new JPanel();
  5. 	
  6. 	public static void main(String[] args) {
  7. 		Buttons.setButtons(frame, panel);
  8. 		Window.setFrame(frame, panel);
  9. 	}
  11. }

Buttons

  1. public class Buttons {
  2. 	
  3. 	private static JButton b0, b1, b2, b3, b4, b5, b6, b7, b8, b9;
  4. 	private static JButton equals;
  5. 	private static JButton minus;
  6. 	private static JButton plus; 
  7. 	private static int i = 0;
  8. 	private static int x = 10;
  9. 	private static int y = 140;
  10. 	
  11. 	private static JButton buttons[] = {b0, b1, b2, b3, b4, b5, b6, b7, b8, b9};
  12. 	
  13. 	public static void setButtons(JFrame frame, JPanel panel) {
  14. 		
  15. 		for (int b = 0; b < 4; b++) {
  16. 			while (i < 3) {
  17. 			    buttons[i] = new JButton(Integer.toString(i)); 
  18. 			    buttons[i].setBounds(x, y, 80, 80);
  19. 			    x = x + 85; 
  20. 			    buttons[i].setFocusable(false);
  21. 			    buttons[i].setBackground(Color.GRAY);
  22. 			    panel.add(buttons[i]);
  23. 			    i++;
  24. 			}
  25. 			y = y + 85; 
  26. 			x = 10;
  27. 		}
  28. 		
  29. 		System.out.print(y);
  30. 		frame.setVisible(true); 
  31. 	}
  32. 	
  33. }

Window

  1. public class Window {
  3. 	public static void setFrame(JFrame frame, JPanel panel) {
  4. 		
  5. 		frame.setSize(370, 525);
  6. 		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  7. 		frame.setResizable(false);
  8. 		
  9. 		panel.setBounds(10, 140, 200, 200);
  10. 		panel.setBackground(Color.DARK_GRAY); 
  11. 		frame.add(panel); 
  12. 	}
  13. }
英文:

So I was trying to place 10 buttons in a grid at the bottom of my frame (without using a layout manager) and for some reason I cannot figure out why this isn't working, I was wondering if anyone could help.

I should probably explain the code:

Basically I have just created a loop that stores a "while" in it, this while is repeated 3 times before ending and going back to the loop. After the while is finished, the Y changes by 85 to start a new layer for the next 3 buttons. The loop repeats 4 times to create 4 different layers of 10 buttons.

Thanks!

Main

  1. public class Main {
  3. 	private static JFrame frame = new JFrame();
  4. 	private static JPanel panel = new JPanel();
  5. 	
  6. 	public static void main(String[] args) {
  7. 		Buttons.setButtons(frame, panel);
  8. 		Window.setFrame(frame, panel);
  9. 	}
  11. }

Buttons

  1. public class Buttons {
  2. 	
  3. 	private static JButton b0, b1, b2, b3, b4, b5, b6, b7, b8, b9;
  4. 	private static JButton equals;
  5. 	private static JButton minus;
  6. 	private static JButton plus; 
  7. 	private static int i = 0;
  8. 	private static int x = 10;
  9. 	private static int y = 140;
  10. 	
  11. 	private static JButton buttons[] = {b0, b1, b2, b3, b4, b5, b6, b7, b8, b9};
  12. 	
  13. 	public static void setButtons(JFrame frame, JPanel panel) {
  14. 		
  15. 		for (int b = 0; b < 4; b++) {
  16. 			while (i < 3) {
  17. 			    buttons[i] = new JButton(Integer.toString(i)); 
  18. 			    buttons[i].setBounds(x, y, 80, 80);
  19. 			    x = x + 85; 
  20. 			    buttons[i].setFocusable(false);
  21. 			    buttons[i].setBackground(Color.GRAY);
  22. 			    panel.add(buttons[i]);
  23. 			    i++;
  24. 			}
  25. 			y = y + 85; 
  26. 			x = 10;
  27. 		}
  28. 		
  29. 		System.out.print(y);
  30. 		frame.setVisible(true); 
  31. 	}
  32. 	
  33. }

Window

  1. public class Window {
  3. 	public static void setFrame(JFrame frame, JPanel panel) {
  4. 		
  5. 		frame.setSize(370, 525);
  6. 		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  7. 		frame.setResizable(false);
  8. 		
  9. 		panel.setBounds(10, 140, 200, 200);
  10. 		panel.setBackground(Color.DARK_GRAY); 
  11. 		frame.add(panel); 
  12. 	}
  13. }

答案1

得分: -2

Here's the translated code:

  1. 感谢，这个代码有效，并解决了我的一个问题。另一个问题是在第二次循环后“while”不起作用，所以我不得不重写循环系统，这是解决方案，以防你想使用它（不要使用这个，我是新手。也不要像我一样，使用布局管理器。）：
  3. public class Buttons {
  4. 	
  5. 	private static JButton b0, b1, b2, b3, b4, b5, b6, b7, b8, b9;
  6. 	private static JButton dot;
  7. 	private static JButton equals;
  8. 	private static JButton minus;
  9. 	private static JButton plus;
  10. 	private static int count = 9;
  11. 	private static int x = 10;
  12. 	private static int y = 145;
  13. 	
  14. 	private static JButton buttons[] = {b0, b1, b2, b3, b4, b5, b6, b7, b8, b9};
  15. 	
  16. 	public static void setButtons(JFrame frame, JPanel panel) {
  17. 		
  18. 		for (int b = 3; b > 0; b--) {
  19. 			for (int i = 3; i > 0 ; i--) {
  20. 			buttons[count] = new JButton(Integer.toString(count)); 
  21. 			buttons[count].setBounds(x, y, 80, 80);
  22. 			x = x + 85; 
  23. 			buttons[count].setFocusable(false);
  24. 			buttons[count].setBackground(Color.GRAY);
  25. 			panel.add(buttons[count]);
  26. 			count--;
  27. 			}
  28. 			y = y + 85; 
  29. 			x = 10;
  30. 		}
  31. 		
  32. 		dot = new JButton(".");
  33. 		dot.setBounds(x, y, 80, 80);
  34. 		dot.setFocusable(false);
  35. 		dot.setBackground(new Color(0, 200, 150));
  36. 		panel.add(dot);
  37. 		
  38. 		buttons[0] = new JButton("0");
  39. 		x = x + 85;
  40. 		buttons[0].setBounds(x, y, 80, 80);
  41. 		buttons[0].setFocusable(false);
  42. 		buttons[0].setBackground(Color.GRAY);
  43. 		panel.add(buttons[0]);
  44. 		
  45. 		plus = new JButton("+");
  46. 		x = x + 85; 
  47. 		plus.setBounds(x, y, 80, 80); 
  48. 		plus.setFocusable(false);
  49. 		plus.setBackground(new Color(0, 200, 150));
  50. 		panel.add(plus);
  51. 		
  52. 		minus = new JButton("-");
  53. 		x = x + 85;
  54. 		minus.setBounds(x, y, 80, 80);
  55. 		minus.setFocusable(false);
  56. 		minus.setBackground(new Color(0, 200, 150));
  57. 		panel.add(minus); 
  58. 		
  59. 		equals = new JButton("=");
  60. 		y = 145;
  61. 		equals.setBounds(x, y, 80, 250);
  62. 		equals.setFocusable(false);
  63. 		equals.setBackground(new Color(240, 150, 50));
  64. 		panel.add(equals); 
  65. 		
  66. 		frame.setVisible(true); 
  67. 	}
  68. 	
  69. }

I've translated the code as requested.

英文:

Thanks this works, and solved one of my problems. The other problem was that the "while" did not work after the second loop so I had to rewrite the loop system, here is the solution just in case you want to use it (don't use this, I'm a noob. Also don't be like me, use a layout manager.):

  1. public class Buttons {
  2. private static JButton b0, b1, b2, b3, b4, b5, b6, b7, b8, b9;
  3. private static JButton dot;
  4. private static JButton equals;
  5. private static JButton minus;
  6. private static JButton plus;
  7. private static int count = 9;
  8. private static int x = 10;
  9. private static int y = 145;
  10. private static JButton buttons[] = {b0, b1, b2, b3, b4, b5, b6, b7, b8, b9};
  11. public static void setButtons(JFrame frame, JPanel panel) {
  12. for (int b = 3; b > 0; b--) {
  13. for (int i = 3; i > 0 ; i--) {
  14. buttons[count] = new JButton(Integer.toString(count)); 
  15. buttons[count].setBounds(x, y, 80, 80);
  16. x = x + 85; 
  17. buttons[count].setFocusable(false);
  18. buttons[count].setBackground(Color.GRAY);
  19. panel.add(buttons[count]);
  20. count--;
  21. }
  22. y = y + 85; 
  23. x = 10;
  24. }
  25. dot = new JButton(".");
  26. dot.setBounds(x, y, 80, 80);
  27. dot.setFocusable(false);
  28. dot.setBackground(new Color(0, 200, 150));
  29. panel.add(dot);
  30. buttons[0] = new JButton("0");
  31. x = x + 85;
  32. buttons[0].setBounds(x, y, 80, 80);
  33. buttons[0].setFocusable(false);
  34. buttons[0].setBackground(Color.GRAY);
  35. panel.add(buttons[0]);
  36. plus = new JButton("+");
  37. x = x + 85; 
  38. plus.setBounds(x, y, 80, 80); 
  39. plus.setFocusable(false);
  40. plus.setBackground(new Color(0, 200, 150));
  41. panel.add(plus);
  42. minus = new JButton("-");
  43. x = x + 85;
  44. minus.setBounds(x, y, 80, 80);
  45. minus.setFocusable(false);
  46. minus.setBackground(new Color(0, 200, 150));
  47. panel.add(minus); 
  48. equals = new JButton("=");
  49. y = 145;
  50. equals.setBounds(x, y, 80, 250);
  51. equals.setFocusable(false);
  52. equals.setBackground(new Color(240, 150, 50));
  53. panel.add(equals); 
  54. frame.setVisible(true); 
  55. }

}

答案2

得分: -3

也许你认为你没有使用布局管理器，因为你没有在你的 JFrame 上调用 setLayout，但事实上，默认情况下，JFrame 会自动使用 BorderLayout 布局。

如果你确实想要不使用布局管理器，请在你的设置代码中添加以下行：

  1. frame.setLayout(null);
英文:

Maybe you think you're working without a layout manager because you haven't called setLayout on your JFrame, but in fact the JFrame gave itself a BorderLayout by default.

If you truly want to work without a layout manager, add the line

  1. frame.setLayout(null);

in your setup code.

huangapple
  • 本文由 发表于 2020年8月1日 11:57:58
  • 转载请务必保留本文链接：https://go.coder-hub.com/63201609.html
  • java
  • jbutton
  • jpanel
  • layout-manager
  • swing
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