java - 无法将 keyListeners 添加到按钮
问题描述
我正在尝试创建具有一些基本功能的键盘 GUI。我遇到的问题在我的draw(...){...}函数中，它突出显示了该addKeyListener()方法，但出现错误：
The method addKeyListener(KeyListener) in the type Component is not applicable for the arguments (a3_keyboard)
我不确定我做错了什么。我尝试更改我的代码，
getContentPane().addKeyListener(this);
for (JButton button : first) { button.addKeyListener(this); }
for (JButton button : second) { button.addKeyListener(this); }
for (JButton button : third) { button.addKeyListener(this); }
for (JButton button : fourth) { button.addKeyListener(this); }
for (JButton button : fifth) { button.addKeyListener(this); }
但这给了我同样的错误。完整代码如下：
import java.awt.*;
import java.awt.event.KeyEvent;
import javax.swing.*;
public class a3_keyboard extends JFrame implements KeyListener {
//input
String input;
//default color
Color defaultColor = new JButton().getBackground();
//main rows of keys
private String rowOne[] = {
"~", "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "-", "+", "h"
};
private String rowTwo[] = {
"Tab", "Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P", "[", "]", "\\"
};
private String rowThree[] = {
"Caps", "A", "S", "D", "F", "G", "H", "J", "K", "L", ":", "'", "Enter"
};
private String rowFour[] = {
"Shift", "Z", "X", "C", "V", "B", "N", "M", ",", ".", "?", " ^"
};
private String rowFive[] = {
" ", "<", "v", ">"
};
/** Account for chars with no shift:
** Program toggles Shift key, meaning
** if a user clicks on it, all keys will be
** toggled to their respective shift value. The
** user can tap the shift key again to
** change back to regular value */
private String shiftless[] = {
"1","2","3","4","5","6","7","8","9","0",
"-","=","q","w","e","r","t","y","u","i","o","p",
"[","]","\\","a","s","d","f","g","h","j","k","l",
";","z","x","c","v","b","n","m",",",".","/"
};
//Account for special chars
private String specialChars[] = {
"~", "-", "+", "[", "]", "\\", ";", ".", "?"
};
private JLabel context = new JLabel("Type some text using your keyboard. "
+ "The keys you press will be highlighed and the text will be displayed.\n "
+ "Note: Clicking the buttons with your mouse will not perform any action.")
.setFont(new Font("Verdana",Font.BOLD,14));
//declare rows of buttons
private JButton buttons_rowOne[], buttons_rowTwo[], buttons_rowThree[], buttons_rowFour[], buttons_rowFive[];
//ctor
public a3_keyboard() {
super("Typing Tutor");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setResizable(false);
this.getContentPane().setPreferredSize(new Dimension(1000,600));
this.setLocation(50,50);
this.setVisible(true);
__init__();
}
public void __init__layout(JPanel top, JPanel middle, JPanel bottom, JPanel contextBox) {
setLayout(new BorderLayout());
add(top, BorderLayout.NORTH);
add(contextBox);
add(middle, BorderLayout.CENTER);
add(bottom, BorderLayout.SOUTH);
}
private void __init__body() {
JTextArea body = new JTextArea().setPreferredSize(new Dimension(600, 150));
}
public void __init__panels() {
JPanel top = new JPanel();
JPanel middle = new JPanel();
JPanel bottom = new JPanel();
JPanel contextBox = new JPanel();
__init__layout(top, middle, bottom, contextBox);
top.setLayout(new BorderLayout());
bottom.setLayout(new GridLayout(5,1));
top.add(info, BorderLayout.WEST);
top.add(info, BorderLayout.SOUTH);
middle.setLayout( new BorderLayout());
middle.add(text, BorderLayout.WEST);
middle.add(text, BorderLayout.CENTER);
}
private void __init__() {
//text area
__init__body();
//panels for layout
__init__panels();
pack();
//get length of row strings
int length_rowOne = rowOne.length;
int length_rowTwo = rowTwo.length;
int length_rowThree = rowThree.length;
int length_rowFour = rowFour.length;
int length_rowFive = rowFive.length;
//create array for each row of buttons
buttons_rowOne = new JButton[length_rowOne];
buttons_rowTwo = new JButton[length_rowTwo];
buttons_rowThree = new JButton[length_rowThree];
buttons_rowFour = new JButton[length_rowFour];
buttons_rowFive = new JButton[length_rowFive];
//create panel for each row of buttons
JPanel r1 = new JPanel(new GridLayout(1, length_rowOne));
JPanel r2 = new JPanel(new GridLayout(1, length_rowTwo));
JPanel r3 = new JPanel(new GridLayout(1, length_rowThree));
JPanel r4 = new JPanel(new GridLayout(1, length_rowFour));
JPanel r5 = new JPanel(new GridLayout(1, length_rowFive));
//draw out the rows of buttons
draw(
r1, length_rowOne,
r2, length_rowTwo,
r3, length_rowThree,
r4, length_rowFour,
r5, length_rowFive
);
}
//draw rows of buttons
public void draw(JPanel r1, int s1,
JPanel r2, int s2,
JPanel r3, int s3,
JPanel r4, int s4,
JPanel r5, int s5) {
for (int i = 0; i < s1; i++) {
JButton currentButton = new JButton(rowOne[i]);
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowOne[i] = currentButton;
buttons_rowOne[i].addKeyListener(this);
r1.add(buttons_rowOne[i]);
}
for (int i = 0; i < s2; i++) {
JButton currentButton = new JButton(rowOne[i]);
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowTwo[i] = currentButton;
buttons_rowTwo[i].addKeyListener(this);
r1.add(buttons_rowTwo[i]);
}
for (int i = 0; i < s3; i++) {
JButton currentButton = new JButton(rowOne[i]);
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowThree[i] = currentButton;
buttons_rowThree[i].addKeyListener(this);
r1.add(buttons_rowThree[i]);
}
for (int i = 0; i < s4; i++) {
JButton currentButton = new JButton(rowOne[i]);
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowFour[i] = currentButton;
buttons_rowFour[i].addKeyListener(this);
r1.add(buttons_rowFour[i]);
}
for (int i = 0; i < s5; i++) {
JButton currentButton = new JButton(rowOne[i]);
//account for space bar
if (i == 1) {
currentButton = new JButton(rowFive[i]);
currentButton.setPreferredSize(new Dimension(400,10));
currentButton.setBounds(10, 10, 600, 100);
buttons_rowFive[i] = currentButton;
} else {
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowFive[i] = currentButton;
buttons_rowFive[i].addKeyListener(this);
}
r1.add(buttons_rowFive[i]);
}
bottom.add(r1);
bottom.add(r2);
bottom.add(r3);
bottom.add(r4);
bottom.add(r5);
}//!draw(...)
//called when a button is pressed
@Override
public void activated(KeyEvent press) {
int index = press.getKeyCode();
input = String.format("%s", index);
}//!activated(...)
//called when a button is released
@Override
public void deactivated(KeyEvent release) {
int index = release.getKeyCode();
input = String.format( "%s"+KeyEvent.getKeyText(keyCode) );
this.setBackground(defaultColor);;
}//!deactivated(...)
//main method
public static void main(Strings[] args) {
new a3_keyboard();
}//!main method
//obtain the JButton’s original background colour before you change its colour
}//!main class
如果我遗漏了什么，请告诉我，我会将其添加到问题中。
编辑：
新代码：
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.*;
public class a3_keyboard extends JFrame implements KeyListener {
//input
String input;
//input body
JTextArea body;
//panels
JPanel top, middle, bottom, contextBox = new JPanel();
//default color
Color defaultColor = new JButton().getBackground();
//main rows of keys
public String rowOne[] = {
"~", "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "-", "+", "h"
};
public String rowTwo[] = {
"Tab", "Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P", "[", "]", "\\"
};
public String rowThree[] = {
"Caps", "A", "S", "D", "F", "G", "H", "J", "K", "L", ":", "'", "Enter"
};
public String rowFour[] = {
"Shift", "Z", "X", "C", "V", "B", "N", "M", ",", ".", "?", " ^"
};
public String rowFive[] = {
" ", "<", "v", ">"
};
/** Account for chars with no shift:
** Program toggles Shift key, meaning
** if a user clicks on it, all keys will be
** toggled to their respective shift value. The
** user can tap the shift key again to
** change back to regular value */
public String shiftless[] = {
"1","2","3","4","5","6","7","8","9","0",
"-","=","q","w","e","r","t","y","u","i","o","p",
"[","]","\\","a","s","d","f","g","h","j","k","l",
";","z","x","c","v","b","n","m",",",".","/"
};
//Account for special chars
public String specialChars[] = {
"~", "-", "+", "[", "]", "\\", ";", ".", "?"
};
//declare rows of buttons
public JButton buttons_rowOne[], buttons_rowTwo[], buttons_rowThree[], buttons_rowFour[], buttons_rowFive[];
//ctor
public a3_keyboard() {
super("Typing Tutor");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setResizable(false);
this.getContentPane().setPreferredSize(new Dimension(1000,600));
this.setLocation(50,50);
this.setVisible(true);
__init__();
}
public void __init__layout(JPanel top, JPanel middle, JPanel bottom, JPanel contextBox) {
setLayout(new BorderLayout());
add(top, BorderLayout.NORTH);
add(contextBox);
add(middle, BorderLayout.CENTER);
add(bottom, BorderLayout.SOUTH);
}
public void __init__body() {
JTextArea body = new JTextArea();
body.setPreferredSize(new Dimension(600, 150));
}
public void __init__panels() {
JLabel context = new JLabel("Type some text using your keyboard. "
+ "The keys you press will be highlighed and the text will be displayed.\n "
+ "Note: Clicking the buttons with your mouse will not perform any action.");
context.setFont(new Font("Verdana",Font.BOLD,14));
__init__layout(top, middle, bottom, contextBox);
top.setLayout(new BorderLayout());
bottom.setLayout(new GridLayout(5,1));
top.add(context, BorderLayout.WEST);
top.add(context, BorderLayout.SOUTH);
middle.setLayout( new BorderLayout());
middle.add(body, BorderLayout.WEST);
middle.add(body, BorderLayout.CENTER);
}
public void __init__() {
//text area
__init__body();
//panels for layout
__init__panels();
pack();
//get length of row strings
int length_rowOne = rowOne.length;
int length_rowTwo = rowTwo.length;
int length_rowThree = rowThree.length;
int length_rowFour = rowFour.length;
int length_rowFive = rowFive.length;
//create array for each row of buttons
buttons_rowOne = new JButton[length_rowOne];
buttons_rowTwo = new JButton[length_rowTwo];
buttons_rowThree = new JButton[length_rowThree];
buttons_rowFour = new JButton[length_rowFour];
buttons_rowFive = new JButton[length_rowFive];
//create panel for each row of buttons
JPanel r1 = new JPanel(new GridLayout(1, length_rowOne));
JPanel r2 = new JPanel(new GridLayout(1, length_rowTwo));
JPanel r3 = new JPanel(new GridLayout(1, length_rowThree));
JPanel r4 = new JPanel(new GridLayout(1, length_rowFour));
JPanel r5 = new JPanel(new GridLayout(1, length_rowFive));
//draw out the rows of buttons
draw(
r1, length_rowOne,
r2, length_rowTwo,
r3, length_rowThree,
r4, length_rowFour,
r5, length_rowFive
);
}
//draw rows of buttons
public void draw(JPanel r1, int s1,
JPanel r2, int s2,
JPanel r3, int s3,
JPanel r4, int s4,
JPanel r5, int s5) {
for (int i = 0; i < s1; i++) {
JButton currentButton = new JButton(rowOne[i]);
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowOne[i] = currentButton;
buttons_rowOne[i].addKeyListener(this);
r1.add(buttons_rowOne[i]);
}
for (int i = 0; i < s2; i++) {
JButton currentButton = new JButton(rowOne[i]);
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowTwo[i] = currentButton;
buttons_rowTwo[i].addKeyListener(this);
r1.add(buttons_rowTwo[i]);
}
for (int i = 0; i < s3; i++) {
JButton currentButton = new JButton(rowOne[i]);
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowThree[i] = currentButton;
buttons_rowThree[i].addKeyListener(this);
r1.add(buttons_rowThree[i]);
}
for (int i = 0; i < s4; i++) {
JButton currentButton = new JButton(rowOne[i]);
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowFour[i] = currentButton;
buttons_rowFour[i].addKeyListener(this);
r1.add(buttons_rowFour[i]);
}
for (int i = 0; i < s5; i++) {
JButton currentButton = new JButton(rowOne[i]);
//account for space bar
if (i == 1) {
currentButton = new JButton(rowFive[i]);
currentButton.setPreferredSize(new Dimension(400,10));
currentButton.setBounds(10, 10, 600, 100);
buttons_rowFive[i] = currentButton;
buttons_rowFive[i].addKeyListener(this);
} else {
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowFive[i] = currentButton;
buttons_rowFive[i].addKeyListener(this);
}
r1.add(buttons_rowFive[i]);
}
bottom.add(r1);
bottom.add(r2);
bottom.add(r3);
bottom.add(r4);
bottom.add(r5);
}//!draw(...)
// called when a button is pressed
@Override
public void keyPressed(KeyEvent pressed) {
JButton current = (JButton) pressed.getSource();
current.setBackground(Color.GRAY);
body.append(toString(current.getKeyChar()));
}//!keyPressed(...)
// called when a button is released
@Override
public void keyReleased(KeyEvent released) {
JButton current = (JButton) released.getSource();
current.setBackground(defaultColor);
}//!keyReleased(...)
@Override
public void keyTyped(KeyEvent typed) {
JButton current = (JButton) typed.getSource();
}
//main method
public static void main(String[] args) {
new a3_keyboard();
}//!main method
private static final long serialVersionUID = 999;
}//!main class
编辑2：
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
public class ButtonInPane extends JFrame implements KeyListener {
//redacted, see below
@Override
public void keyPressed(KeyEvent press) {
JButton current = (JButton) press.getSource();
current.setBackground(Color.GRAY);
StringBuilder sb = new StringBuilder();
sb.append(press.getKeyChar());
body.append(sb.toString());
} // !keyPressed(...)
// called when a button is released
@Override
public void keyReleased(KeyEvent release) {
JButton current = (JButton) release.getSource();
current.setBackground(defaultColor);
} // !keyReleased(...)
@Override
public void keyTyped(KeyEvent typed) {
JButton current = (JButton) typed.getSource();
}
// main method
public static void main(String[] args) {
new ButtonInPane();
} // !main method
private static final long serialVersionUID = 999;
} // !main class
编辑3：
@Override
public void keyPressed(KeyEvent press) {
Object current = press.getSource().toString();
for (int i = 0; i < 14; i++) {
if (current == rowOne[i]) {
buttons_rowOne[i].setBackground(Color.GRAY);
} else if (current == rowTwo[i]) {
buttons_rowTwo[i].setBackground(Color.GRAY);
} else if (current == rowThree[i]) {
buttons_rowThree[i].setBackground(Color.GRAY);
} else if (current == rowFour[i]) {
buttons_rowFour[i].setBackground(Color.GRAY);
} else if (current == rowFive[i]) {
buttons_rowFive[i].setBackground(Color.GRAY);
}
}
} // !keyPressed(...)
// called when a button is released
@Override
public void keyReleased(KeyEvent release) {
Object current = release.getSource().toString();
for (int i = 0; i < 14; i++) {
if (current == rowOne[i]) {
buttons_rowOne[i].setBackground(defaultColor);
} else if (current == rowTwo[i]) {
buttons_rowTwo[i].setBackground(defaultColor);
} else if (current == rowThree[i]) {
buttons_rowThree[i].setBackground(defaultColor);
} else if (current == rowFour[i]) {
buttons_rowFour[i].setBackground(defaultColor);
} else if (current == rowFive[i]) {
buttons_rowFive[i].setBackground(defaultColor);
}
}
} // !keyReleased(...)
@Override
public void keyTyped(KeyEvent typed) {
// Object current = typed.getSource().toString();
// StringBuilder sb = new StringBuilder();
// for (int i = 0; i < 14; i++) {
// if (current == rowOne[i]) {
// sb.append(typed.getKeyCode());
// body.append(sb.toString());
// } else if (current == rowTwo[i]) {
// sb.append(typed.getKeyCode());
// body.append(sb.toString());
// } else if (current == rowThree[i]) {
// sb.append(typed.getKeyCode());
// body.append(sb.toString());
// } else if (current == rowFour[i]) {
// sb.append(typed.getKeyCode());
// body.append(sb.toString());
// } else if (current == rowFive[i]) {
// sb.append(typed.getKeyCode());
// body.append(sb.toString());
// }
// }
}
解决方案
此版本将 keylistener 放在正确的组件上。但是，鉴于您的新理解，您现在需要重新设计它...
因为就像现在的代码一样，jtext 区域主体只是在您按下它们时重复该键。有几种方法可以解决这个问题。
一些蛮力和其他更复杂但优雅。如果您仍然需要帮助，请联系我。
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
public class ButtonInPane extends JFrame implements KeyListener {
// input
String input;
//context
JLabel context1, context2;
// default color
Color defaultColor = new JButton().getBackground();
// main rows of keys
public String rowOne[] = {
"~",
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"0",
"-",
"+",
"h"
};
public String rowTwo[] = {
"Tab",
"Q",
"W",
"E",
"R",
"T",
"Y",
"U",
"I",
"O",
"P",
"[",
"]",
"\\"
};
public String rowThree[] = {
"Caps",
"A",
"S",
"D",
"F",
"G",
"H",
"J",
"K",
"L",
":",
"'",
"Enter"
};
public String rowFour[] = {
"Shift",
"Z",
"X",
"C",
"V",
"B",
"N",
"M",
",",
".",
"?",
" ^"
};
public String rowFive[] = {
" ",
"<",
"v",
">"
};
/**
* Account for chars with no shift: Program toggles Shift key, meaning if a
* user clicks on it, all keys will be toggled to their respective shift
* value. The user can tap the shift key again to change back to regular
* value
*/
public String shiftless[] = {
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"0",
"-",
"=",
"q",
"w",
"e",
"r",
"t",
"y",
"u",
"i",
"o",
"p",
"[",
"]",
"\\",
"a",
"s",
"d",
"f",
"g",
"h",
"j",
"k",
"l",
";",
"z",
"x",
"c",
"v",
"b",
"n",
"m",
",",
".",
"/"
};
// Account for special chars
public String specialChars[] = {
"~",
"-",
"+",
"[",
"]",
"\\",
";",
".",
"?"
};
// declare rows of buttons
public JButton buttons_rowOne[], buttons_rowTwo[], buttons_rowThree[], buttons_rowFour[], buttons_rowFive[];
private JTextArea body;
private JPanel top;
private JPanel middle;
private JPanel bottom;
private JPanel contextBox;
// ctor
public ButtonInPane() {
super("Typing Tutor");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setResizable(false);
this.getContentPane().setPreferredSize(new Dimension(2000, 600));
this.setLocation(50, 50);
this.setVisible(true);
__init__();
}
public void __init__layout(JPanel top, JPanel middle, JPanel bottom, JPanel contextBox) {
setLayout(new BorderLayout());
add(top, BorderLayout.NORTH);
add(contextBox);
add(middle, BorderLayout.CENTER);
add(bottom, BorderLayout.SOUTH);
}
public void __init__body() {
body = new JTextArea();
body.setPreferredSize(new Dimension(600, 150));
body.addKeyListener(this);
}
public void __init__panels() {
context1 = new JLabel("Type some text using your keyboard. " +
"The keys you press will be highlighed and the text will be displayed.");
context2 = new JLabel("\nNote: Clicking the buttons with your mouse will not perform any action.");
context1.setFont(new Font("Verdana", Font.BOLD, 14));
context2.setFont(new Font("Verdana", Font.BOLD, 14));
top = new JPanel();
top.setSize(new Dimension(500, 500));
middle = new JPanel();
bottom = new JPanel();
contextBox = new JPanel();
__init__layout(top, middle, bottom, contextBox);
top.setLayout(new BorderLayout());
bottom.setLayout(new GridLayout(5, 1));
top.add(context2);
top.add(context1);
middle.setLayout(new BorderLayout());
middle.add(body, BorderLayout.WEST);
middle.add(body, BorderLayout.CENTER);
}
public void __init__() {
// text area
__init__body();
// panels for layout
__init__panels();
pack();
// get length of row strings
int length_rowOne = rowOne.length;
int length_rowTwo = rowTwo.length;
int length_rowThree = rowThree.length;
int length_rowFour = rowFour.length;
int length_rowFive = rowFive.length;
// create array for each row of buttons
buttons_rowOne = new JButton[length_rowOne];
buttons_rowTwo = new JButton[length_rowTwo];
buttons_rowThree = new JButton[length_rowThree];
buttons_rowFour = new JButton[length_rowFour];
buttons_rowFive = new JButton[length_rowFive];
// create panel for each row of buttons
JPanel r1 = new JPanel(new GridLayout(1, length_rowOne));
JPanel r2 = new JPanel(new GridLayout(1, length_rowTwo));
JPanel r3 = new JPanel(new GridLayout(1, length_rowThree));
JPanel r4 = new JPanel(new GridLayout(1, length_rowFour));
JPanel r5 = new JPanel(new GridLayout(1, length_rowFive));
// draw out the rows of buttons
draw(r1, length_rowOne, r2, length_rowTwo, r3, length_rowThree, r4, length_rowFour, r5, length_rowFive);
}
// draw rows of buttons
public void draw(JPanel r1, int s1, JPanel r2, int s2, JPanel r3, int s3, JPanel r4, int s4, JPanel r5, int s5) {
for (int i = 0; i < s1; i++) {
JButton currentButton = new JButton(rowOne[i]);
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowOne[i] = currentButton;
r1.add(buttons_rowOne[i]);
}
for (int i = 0; i < s2; i++) {
JButton currentButton = new JButton(rowTwo[i]);
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowTwo[i] = currentButton;
r2.add(buttons_rowTwo[i]);
}
for (int i = 0; i < s3; i++) {
JButton currentButton = new JButton(rowThree[i]);
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowThree[i] = currentButton;
r3.add(buttons_rowThree[i]);
}
for (int i = 0; i < s4; i++) {
JButton currentButton = new JButton(rowFour[i]);
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowFour[i] = currentButton;
r4.add(buttons_rowFour[i]);
}
for (int i = 0; i < s5; i++) {
JButton currentButton = new JButton(rowFive[i]);
// account for space bar
if (i == 1) {
currentButton = new JButton(rowFive[i]);
currentButton.setPreferredSize(new Dimension(400, 10));
currentButton.setBounds(10, 10, 600, 100);
buttons_rowFive[i] = currentButton;
} else {
currentButton.setPreferredSize(new Dimension(100, 50));
buttons_rowFive[i] = currentButton;
}
r5.add(buttons_rowFive[i]);
}
bottom.add(r1);
bottom.add(r2);
bottom.add(r3);
bottom.add(r4);
bottom.add(r5);
} // !draw(...)
// called when a button is pressed
@Override
public void keyPressed(KeyEvent press) {
StringBuilder sb = new StringBuilder();
sb.append(press.getKeyChar());
body.append(sb.toString());
} // !keyPressed(...)
// called when a button is released
@Override
public void keyReleased(KeyEvent release) {
Object current = release.getSource();
} // !keyReleased(...)
@Override
public void keyTyped(KeyEvent typed) {
Object current = typed.getSource();
}
// main method
public static void main(String[] args) {
new ButtonInPane();
} // !main method
private static final long serialVersionUID = 999;
} // !main class
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