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제 코드에서 알 수 있듯이 전체적인 개념이 완전히 누락되었습니다.스윙의 EDT가 포함 된 스레드 오류
하는 JButton 텍스트 필드 : 텍스트 방향 및
내가 오류를 확인하고 이미 정의 된 버튼을 다시 제공 내 Button 클래스에 그 정보를 전달할 니모닉 내 목표는 사용자 입력을하는 것입니다.
그런 다음 JFrame을 사용자 사양과 관련하여 단추로 채 웁니다.
BASIC과 분명히 코스 질문이지만, 여기 내 지혜 끝에 있습니다. 도움을 요청한 것은 이번이 처음이므로 쉽게 받아주세요. 다음과 같이
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JButton;
/**
* This class will create a button using the Button class and with user input to define the instance
* of the Button Class.
*
*/
public class CreateButton extends JPanel
{
// instance variables
private static String userIn; // user input
private static Button userButton; // button to be manipulated
public static JButton createdButton; // finished button
/**
* Contructor for the CreateButton class.
*/
public static void main (String [] args)
{
System.out.println("\nThis program will create a button with some input for you.");
System.out.println("What would you like to call this button?");
userIn = StringIn.get();
userButton = new Button();
userButton.buttonText(userIn);
System.out.println("\nYou can orient your text on the button in the vertical and");
System.out.println("horizontal axis. We will start with the vertical. Where would you like");
System.out.println("the text, on the top, center, or bottom?");
userIn = StringIn.get();
String vertical = userIn;
System.out.println("\nNext let's select the horizontal alignment. Would you like the text");
System.out.println("aligned to the left, center, or right?");
userIn = StringIn.get();
String horizontal = userIn;
userButton.textPosition(vertical,horizontal);
System.out.println("\nFinally let's add a mnemonic or hotkey to the button. Pick a letter");
System.out.println("from a-z on the keyboard and you can activate the button by pushing");
System.out.println("ALT + your letter of choice. Please enter your letter:");
userIn = StringIn.get();
userButton.buttonMnemomic(userIn);
System.out.println("\nGreat let's create and see this button.");
javax.swing.SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
createAndShowGUI();
}
});
}
private static void createAndShowGUI()
{
//Create and set up the window.
JFrame frame = new JFrame("Create a Button");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Create and set up the content pane.
CreateButton newContentPane = new CreateButton();
newContentPane.setOpaque(true); //content panes must be opaque
frame.setContentPane(newContentPane);
//Display the window.
frame.pack();
frame.setVisible(true);
}
}
내 버튼 오류 검사 코드는 다음과 같습니다
import javax.swing.AbstractButton;
import javax.swing.JButton;
/**
* This class will demonstrate the use of a button.
*
*/
public class Button
{
// instance variables
protected JButton myButton; // button to be created and manipulated
private String myButtonText; // text on the button
private String myButtonVerticalTextPosition;
private String myButtonHorizontalTextPosition;
private String myButtonMnemonic; // hotkey for the button
/**
* Constructor for objects of class Button
*/
public Button()
{
}
/**
*Set button text. String input.
*/
public void buttonText(String textIn)
{
myButtonText = textIn;
}
/**
*Set button text position. String input for vertical (top, center, bottom) and horizontal
*(left, center, right).
*/
public void textPosition(String verticalIn, String horizontalIn)
{
myButtonVerticalTextPosition = verticalIn;
boolean validInput = false;
do
{
if ((myButtonVerticalTextPosition.compareToIgnoreCase("top") == 0)||
(myButtonVerticalTextPosition.compareToIgnoreCase("centre") == 0) ||
(myButtonVerticalTextPosition.compareToIgnoreCase("center") == 0) ||
(myButtonVerticalTextPosition.compareToIgnoreCase("bottom") == 0))
{
validInput = true;
} else
{
System.out.println("\nPlease enter top, center, or bottom for vertical position:");
myButtonVerticalTextPosition = StringIn.get();
}
} while (validInput == false);
myButtonHorizontalTextPosition = horizontalIn;
validInput = false;
do
{
if ((myButtonHorizontalTextPosition.compareToIgnoreCase("left") == 0) ||
(myButtonHorizontalTextPosition.compareToIgnoreCase("centre") == 0) ||
(myButtonHorizontalTextPosition.compareToIgnoreCase("center") == 0) ||
(myButtonHorizontalTextPosition.compareToIgnoreCase("right") == 0))
{
validInput = true;
} else
{
System.out.println("\nPlease enter left, center, or right for horizontal position:");
myButtonHorizontalTextPosition = StringIn.get();
}
} while (validInput == false);
}
/**
*Set button mnemomic. String input for mnemomic [a-z].
*/
public void buttonMnemomic(String mnemomicIn)
{
myButtonMnemonic = mnemomicIn;
boolean validInput = false;
do
{
if (myButtonMnemonic.length() > 1)
{
System.out.println("\nPlease enter a letter from a-z: ");
myButtonMnemonic = StringIn.get();
} else if (!myButtonMnemonic.matches("^[a-zA-Z]+$"))
{
System.out.println("\nPlease enter a letter from a-z: ");
myButtonMnemonic = StringIn.get();
} else if ((myButtonMnemonic.length() == 1) &&
(myButtonMnemonic.matches("^[a-zA-Z]+$")))
{
validInput = true;
}
} while (validInput == false);
}
/**
*Create button. Void method to create the button to the variables provided.
*/
public void createButton()
{
// create new button
myButton = new JButton(myButtonText);
// set text position
switch (myButtonVerticalTextPosition)
{
case "top":
myButton.setVerticalTextPosition(AbstractButton.TOP);
break;
case "centre":
myButton.setVerticalTextPosition(AbstractButton.CENTER);
break;
case "center":
myButton.setVerticalTextPosition(AbstractButton.CENTER);
break;
case "bottom":
myButton.setVerticalTextPosition(AbstractButton.BOTTOM);
break;
default:
System.err.format("%n%s is an invalid entry.", myButtonVerticalTextPosition);
break;
}
switch (myButtonHorizontalTextPosition)
{
case "left":
myButton.setHorizontalTextPosition(AbstractButton.LEADING);
break;
case "centre":
myButton.setHorizontalTextPosition(AbstractButton.CENTER);
break;
case "center":
myButton.setHorizontalTextPosition(AbstractButton.CENTER);
break;
case "right":
myButton.setHorizontalTextPosition(AbstractButton.TRAILING);
break;
default:
System.err.format("%n%s is an invalid entry.", myButtonVerticalTextPosition);
break;
}
// set button mnemonic
StringBuilder hotKey = new StringBuilder("KeyEvent.VK_");
hotKey.append(myButtonMnemonic.toUpperCase());
myButton.setMnemonic(hotKey.charAt(0));
// set tool tip text
myButton.setToolTipText("Push the button. You know you want to.");
}
/**
*Returns a JButton for the button type.
*/
public JButton returnButton()
{
return myButton;
}
}
이 모든 당신이 "createdButton"를 추가하는 부분까지 작동합니다. 기본 버튼으로 만들면 모션을 거치며 기본 버튼이 표시됩니다. 단지 할
import java.util.Scanner;
import java.io.IOException;
/**
* This class will allow the user to type in string from the console.
*
*/
public class StringIn
{
// instance variables
private static String userIn;
public static String get()
{
try (Scanner in = new Scanner(System.in))
{
userIn = new String(in.nextLine()); // Read the string from console.
}
return userIn;
}
}
또한 'System.in'에 의존하지 않는 디자인을 고려하십시오. – trashgod