我是Java的新手，我发现在这里实现GUI很难在Visual Basic中实现。
import javax.swing.*;
import java.awt.*;
public class CalculatorGui extends JFrame{
private static final int WIDTH = 250;
private static final int HEIGHT = 250;
private JTextField enterTextField;
private JButton sevenB, eightB, nineB, divideB, fourB, fiveB, sixB, multiplyB, oneB, twoB, threeB, subtractB, zeroB, dotB, equalsB, addB;
public CalculatorGui() {
setTitle("Calculator");
setSize(WIDTH, HEIGHT);
setLayout(new GridLayout(4, 4));
enterTextField = new JTextField(30);
sevenB = new JButton("7");
eightB = new JButton("8");
nineB = new JButton("9");
divideB = new JButton("/");
fourB = new JButton("4");
fiveB = new JButton("5");
sixB = new JButton("6");
multiplyB = new JButton("*");
oneB = new JButton("1");
twoB = new JButton("2");
threeB = new JButton("3");
subtractB = new JButton("-");
zeroB = new JButton("0");
dotB = new JButton(".");
equalsB = new JButton("=");
addB = new JButton("+");
/*JPanel dataPanel = new JPanel();
JPanel buttonPanel = new JPanel();
FlowLayout flowCenter = new FlowLayout(FlowLayout.RIGHT);
GridLayout aGrid = new GridLayout(4, 4);
buttonPanel.setLayout(flowCenter);
dataPanel.setLayout(aGrid);
dataPanel.add(enterTextField);
buttonPanel.add(sevenB);
buttonPanel.add(eightB);
buttonPanel.add(nineB);
buttonPanel.add(divideB);
buttonPanel.add(fourB);
buttonPanel.add(fiveB);
buttonPanel.add(sixB);
buttonPanel.add(multiplyB);
buttonPanel.add(oneB);
buttonPanel.add(twoB);
buttonPanel.add(threeB);
buttonPanel.add(subtractB);
buttonPanel.add(zeroB);
buttonPanel.add(dotB);
buttonPanel.add(equalsB);
buttonPanel.add(addB);
add(dataPanel, BorderLayout.NORTH);
add(buttonPanel, BorderLayout.CENTER);*/
//add(enterTextField);
add(sevenB);
add(eightB);
add(nineB);
add(divideB);
add(fourB);
add(fiveB);
add(sixB);
add(multiplyB);
add(oneB);
add(twoB);
add(threeB);
add(subtractB);
add(zeroB);
add(dotB);
add(equalsB);
add(addB);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
public static void main(String[] args) {
CalculatorGui calcu = new CalculatorGui();
}
}
它会运行，但我需要在这些按钮（数字）之前放置一个文本字段。文本字段应流式，并且在窗口最大化时不会放大（与4x4按钮不同）。我已经尝试了 JPanel （参见评论），但它输出了一个糟糕的设计。 P
答案 0 :(得分：2)
在这里，您可以在构建GUI（rules）时遵循一些规则： 不要为了应用需求而将AWT / Swing / X组件子类化
import java.awt.BorderLayout;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class CalculatorGui {
private static final int WIDTH = 250;
private static final int HEIGHT = 250;
private JTextField enterTextField;
private JButton sevenB, eightB, nineB, divideB, fourB, fiveB, sixB, multiplyB, oneB, twoB, threeB, subtractB, zeroB, dotB, equalsB, addB;
public CalculatorGui() {
JFrame frame = new JFrame("Calculator");
frame.setTitle("Calculator");
frame.setSize(WIDTH, HEIGHT);
JPanel buttonPanel = new JPanel(new GridLayout(4, 4));
enterTextField = new JTextField();
frame.add(enterTextField, BorderLayout.NORTH);
sevenB = new JButton("7");
eightB = new JButton("8");
nineB = new JButton("9");
divideB = new JButton("/");
fourB = new JButton("4");
fiveB = new JButton("5");
sixB = new JButton("6");
multiplyB = new JButton("*");
oneB = new JButton("1");
twoB = new JButton("2");
threeB = new JButton("3");
subtractB = new JButton("-");
zeroB = new JButton("0");
dotB = new JButton(".");
equalsB = new JButton("=");
addB = new JButton("+");
buttonPanel.add(sevenB);
buttonPanel.add(eightB);
buttonPanel.add(nineB);
buttonPanel.add(divideB);
buttonPanel.add(fourB);
buttonPanel.add(fiveB);
buttonPanel.add(sixB);
buttonPanel.add(multiplyB);
buttonPanel.add(oneB);
buttonPanel.add(twoB);
buttonPanel.add(threeB);
buttonPanel.add(subtractB);
buttonPanel.add(zeroB);
buttonPanel.add(dotB);
buttonPanel.add(equalsB);
buttonPanel.add(addB);
frame.add(buttonPanel, BorderLayout.CENTER);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
public static void main(String[] args) {
CalculatorGui calcu = new CalculatorGui();
}
}
我建议您在完成一些layouts和components
答案 1 :(得分：0)
如果您来自Visual Basic，那么您将陷入拖放的习惯，那么为什么在Java中也可以使用它。
使用WindowsBuilder Pro，现在免费使用Google ...并使用Group Layout设计其中的应用程序。 Group Layout由NetBeans团队于2005年开发。
答案 2 :(得分：0)
我是新手，但我有一个使用AWT设计计算器的代码。它只是一个示例。
import java.awt.*;
public class Calculator extends Frame
{
public Calculator(String s)
{
String buttonString = "789/456*123-0.=+";
for (int i = 0, x=0,y=50; i
Button b = new Button(buttonString.substring(i, i + 1));
b.setBounds(x, y, 50, 50);
add(b);
if((i+1)%4==0)
{
x=0;
y+=50;
}
else
{
x=x+50;
}
}
TextField txtField=new TextField("0");
txtField.setBounds(0,0, 200, 30);
add(txtField);
setSize(200,255);
setVisible(true);
}
public static void main(String[] args)
{
new Calculator("Calculator");
}}
答案 3 :(得分：0)
GUI是框架自定义......
public class Calculator implements ActionListener
{
final static Point point = new Point();
JFrame frame;
JButton one,two,three,four,five,six,seven,eight,nine,zone,cancel,clear,cancel1,sub,add,equal,dot,mult,div,adsub,baket,up;
JPanel top,top1,top2,down,down1,down2,history;
JLabel name,images;
//JTextField text1,text2;
ImageIcon up1,up2;
JTextPane text1;
JScrollPane pane;
ScriptEngine engine;
Border em;
boolean endwith1;
int numbcount=1,opercount=1,numbcount1=1;
boolean operaffer=true;
int lensold;
boolean baketsub=true;
boolean dotcheck=false;
boolean baketcheck=true;
int baketcount=0;
int baketcount1=1;
boolean check;
boolean check1;
SimpleAttributeSet attrib;
public Calculator()
{
frame = new JFrame();
engine = new ScriptEngineManager().getEngineByExtension("js");
name = new JLabel(" Calculator");
name.setForeground(Color.WHITE);
name.setFont(new FontUIResource("Franklin Gothic Medium", Font.PLAIN, 18));
one = new JButton("1");
one.addActionListener(this);
one.setFocusPainted(false);
one.setBackground(Color.WHITE);
one.setForeground(Color.BLACK);
one.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
one.setFont(new FontUIResource("OCR-B 10 BT", Font.PLAIN, 25));
two = new JButton("2");
two.addActionListener(this);
two.setFocusPainted(false);
two.setBackground(Color.WHITE);
two.setForeground(Color.BLACK);
two.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
two.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 25));
three = new JButton("3");
three.addActionListener(this);
three.setFocusPainted(false);
three.setBackground(Color.WHITE);
three.setForeground(Color.BLACK);
three.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
three.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 25));
four = new JButton("4");
four.addActionListener(this);
four.setFocusPainted(false);
four.setBackground(Color.WHITE);
four.setForeground(Color.BLACK);
four.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
four.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 25));
five = new JButton("5");
five.addActionListener(this);
five.setFocusPainted(false);
five.setBackground(Color.WHITE);
five.setForeground(Color.BLACK);
five.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
five.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 25));
six = new JButton("6");
six.addActionListener(this);
six.setFocusPainted(false);
six.setBackground(Color.WHITE);
six.setForeground(Color.BLACK);
six.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
six.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 25));
seven = new JButton("7");
seven.addActionListener(this);
seven.setFocusPainted(false);
seven.setBackground(Color.WHITE);
seven.setForeground(Color.BLACK);
seven.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
seven.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 25));
eight = new JButton("8");
eight.addActionListener(this);
eight.setFocusPainted(false);
eight.setBackground(Color.WHITE);
eight.setForeground(Color.BLACK);
eight.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
eight.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 25));
nine = new JButton("9");
nine.addActionListener(this);
nine.setFocusPainted(false);
nine.setBackground(Color.WHITE);
nine.setForeground(Color.BLACK);
nine.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
nine.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 25));
zone = new JButton("0");
zone.addActionListener(this);
zone.setFocusPainted(false);
zone.setBackground(Color.WHITE);
zone.setForeground(Color.BLACK);
zone.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
zone.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 25));
cancel = new JButton("x");
cancel.addActionListener(this);
cancel.setFocusPainted(false);
cancel.setBackground(new Color(48, 174, 184));
cancel.setForeground(Color.WHITE);
cancel.setBorder(new EmptyBorder(6,6,6,6));
cancel.setFont(new Font("OCR-A BT", Font.PLAIN, 25));
cancel1 = new JButton("X");
cancel1.addActionListener(this);
cancel1.setFocusPainted(false);
cancel1.setBackground(new Color(250, 250, 250));
cancel1.setForeground(new Color(255, 0, 0));
cancel1.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
cancel1.setFont(new Font("OCR-A BT", Font.BOLD, 25));
clear = new JButton("C");
clear.addActionListener(this);
clear.setFocusPainted(false);
clear.setBackground(new Color(250, 250, 250));
clear.setForeground(new Color(49, 166, 216));
clear.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
clear.setFont(new Font("OCR-B 10 BT", Font.BOLD,35));
sub = new JButton("-");
sub.addActionListener(this);
sub.setFocusPainted(false);
sub.setBackground(new Color(250, 250, 250));
sub.setForeground(new Color(49, 166, 216));
sub.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
sub.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 35));
add = new JButton("+");
add.addActionListener(this);
add.setFocusPainted(false);
add.setBackground(new Color(250, 250, 250));
add.setForeground(new Color(49, 166, 216));
add.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
add.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 35));
mult = new JButton("*");
mult.addActionListener(this);
mult.setFocusPainted(false);
mult.setBackground(new Color(250, 250, 250));
mult.setForeground(new Color(49, 166, 216));
mult.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
mult.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 35));
div = new JButton("/");
div.addActionListener(this);
div.setFocusPainted(false);
div.setBackground(new Color(250, 250, 250));
div.setForeground(new Color(49, 166, 216));
div.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
div.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 30));
equal = new JButton("=");
equal.addActionListener(this);
equal.setFocusPainted(false);
equal.setBackground(new Color(250, 250, 250));
equal.setForeground(new Color(0, 153, 0));
equal.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
equal.setFont(new Font("OCR-B 10 BT", Font.BOLD, 35));
dot = new JButton(".");
dot.addActionListener(this);
dot.setFocusPainted(false);
dot.setBackground(Color.WHITE);
dot.setForeground(Color.BLACK);
dot.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
dot.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 25));
adsub = new JButton("+/-");
adsub.addActionListener(this);
adsub.setFocusPainted(false);
adsub.setBackground(Color.WHITE);
adsub.setForeground(Color.BLACK);
adsub.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
adsub.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 25));
baket = new JButton("()");
baket.addActionListener(this);
baket.setFocusPainted(false);
baket.setBackground(new Color(250, 250, 250));
baket.setForeground(new Color(49, 166, 216));
baket.setBorder(BorderFactory.createLineBorder(new Color(240, 240, 240),1));
baket.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 25));
//text1 = new JTextField();
//text1.setColumns(10);
//text1.setFont(new Font("OCR-B 10 BT",Font.PLAIN, 35));
//text1.setBorder(new EmptyBorder(4, 7, 4, 7));
//text1.setHorizontalAlignment(SwingConstants.TRAILING);
//text1.setCaretColor(new Color(49, 166, 216));
attrib = new SimpleAttributeSet();
StyleConstants.setAlignment(attrib, StyleConstants.ALIGN_RIGHT);
StyleConstants.setFontSize(attrib, 30);
text1 = new JTextPane();
text1.setEditorKit(new WrapEditorKit());
text1.setParagraphAttributes(attrib, true);
text1.setBorder(new EmptyBorder(4, 7, 4, 7));
text1.setCaretColor(new Color(49, 166, 216));
text1.setPreferredSize(new Dimension(270, 130));
JScrollPane scrollpane = new JScrollPane(text1);
scrollpane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
scrollpane.getVerticalScrollBar().setPreferredSize(new Dimension(5, 5));
scrollpane.getVerticalScrollBar().setUI(new ScrollLookandFeel());
em = BorderFactory.createEmptyBorder(0, 0, 0, 0);
scrollpane.setBorder(em);
UIManager.put("ScrollBarUI", "My.package.ScrollLookandFeel");
//text2 = new JTextField();z
//text2.setFont(new Font("OCR-B 10 BT",Font.PLAIN, 35));
// text2.setBorder(new EmptyBorder(4, 7, 4, 7));
// text2.setHorizontalAlignment(SwingConstants.RIGHT);
// text2.setForeground(new Color(0, 153, 0));
// text2.setCaretColor(new Color(49, 166, 216));
up2 = new ImageIcon(CreateImage("/project/1467651440_calculator.png").getImage().getScaledInstance(20, 20, Image.SCALE_SMOOTH));
images = new JLabel(up2);
images.setBorder(BorderFactory.createLineBorder(new Color(48, 174, 184),4));
top = new JPanel();
top1 = new JPanel();
top1.setSize(200,400);
top1.setBackground(new Color(48, 174, 184));
top1.setLayout(new BorderLayout());
top1.add(images,BorderLayout.WEST);
top1.add(name,BorderLayout.CENTER);
top1.add(cancel,BorderLayout.EAST);
top2 = new JPanel();
top2.setLayout(new BorderLayout());
top2.add(scrollpane,BorderLayout.NORTH);
//top2.add(text2,BorderLayout.CENTER);
top.setLayout(new BorderLayout());
top.add(top1,BorderLayout.NORTH);
top.add(top2,BorderLayout.CENTER);
down = new JPanel();
down.setLayout(new BorderLayout());
up1 = new ImageIcon(CreateImage("/project/1467658414_arrow-down-01_1.png").getImage().getScaledInstance(15, 15, Image.SCALE_SMOOTH));
up = new JButton();
up.setIcon(up1);
up.setFocusPainted(false);
up.setBackground(new Color(240, 240, 240));
up.setForeground(Color.BLACK);
up.setBorder(BorderFactory.createLineBorder(new Color(187, 197, 201),0));
up.setFont(new Font("OCR-B 10 BT", Font.PLAIN, 15));
down1 = new JPanel();
down1.setLayout(new BorderLayout());
down1.add(up);
down2 = new JPanel();
down2.setBackground(new Color(240, 240, 240));
down2.setLayout(new GridLayout(5, 4));
down2.add(clear);
down2.add(div);
down2.add(mult);
down2.add(cancel1);
down2.add(seven);
down2.add(eight);
down2.add(nine);
down2.add(sub);
down2.add(four);
down2.add(five);
down2.add(six);
down2.add(add);
down2.add(one);
down2.add(two);
down2.add(three);
down2.add(baket);
down2.add(zone);
down2.add(dot);
down2.add(adsub);
down2.add(equal);
down.add(down1,BorderLayout.NORTH);
down.add(down2,BorderLayout.CENTER);
frame.add(top,BorderLayout.NORTH);
frame.add(down,BorderLayout.CENTER);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
frame.setSize(270,450);
frame.setUndecorated(true);
frame.setIconImage(CreateImage("/project/1467651440_calculator.png").getImage().getScaledInstance(60, 60, Image.SCALE_SMOOTH));
frame.addMouseListener(new MouseAdapter() {
@Override
public void mousePressed(MouseEvent e)
{
point.x = e.getX();
point.y = e.getY();
}
});
frame.addMouseMotionListener(new MouseMotionAdapter() {
@Override
public void mouseDragged(MouseEvent e)
{
Point p = frame.getLocation();
frame.setLocation(p.x+e.getX()-point.x,p.y+e.getY()-point.y);
}
});
frame.setVisible(true);
}
private ImageIcon CreateImage(String path)
{
return new ImageIcon(java.awt.Toolkit.getDefaultToolkit().getClass().getResource(path));
}
@Override
public void actionPerformed(ActionEvent e) {
switch(e.getActionCommand())
{
case "1":
numberAction("1");
break;
case "2":
numberAction("2");
break;
case "3":
numberAction("3");
break;
case "4":
numberAction("4");
break;
case "5":
numberAction("5");
break;
case "6":
numberAction("6");
break;
case "7":
numberAction("7");
break;
case "8":
numberAction("8");
break;
case "9":
numberAction("9");
break;
case "0":
numberAction("0");
break;
case ".":
dots(".");
break;
case "+":
digitalAction("+");
break;
case "-":
digitalAction("-");
break;
case "*":
digitalAction("*");
break;
case "/":
digitalAction("/");
break;
case "=":
total();
break;
case "C":
clear();
break;
case "X":
cancel1();
break;
case "()":
Baket();
break;
case "+/-":
baketsub();
break;
}
if(e.getSource()==cancel)
{
frame.setVisible(false);
frame.dispose();
}
}
private void clear()
{
numbcount=1;
opercount=1;
numbcount1=1;
baketcount=0;
baketcount1=1;
baketcheck=true;
baketsub=true;
operaffer=true;
text1.setText("");
}
private void digitalAction(String operation)
{
if(!text1.getText().equals(""))
{
String txt1 = text1.getText();
endwith1 = txt1.endsWith(operation);
System.out.println("text "+endwith1);
int len = txt1.length();
String subs = txt1.substring(len-1);
System.out.println(subs);
if(endwith1==true)
{
}else
{
if(!subs.equals("+") && !subs.equals("-") && !subs.equals("/") && !subs.equals("*"))
{
if(opercount<=5)
{
text1.setText(text1.getText()+operation);
opercount++;
}
String txt10 = text1.getText();
boolean add1 = txt10.endsWith("+");
boolean sub1 = txt10.endsWith("-");
boolean mult1 = txt10.endsWith("*");
boolean div1 = txt10.endsWith("/");
if(true==add1 ||true==sub1 ||true==mult1 || true==div1 )
{
operaffer=false;
numbcount1=1;
}
}else
{
String hide=text1.getText();
text1.setText("");
for(int J=0;J<hide.length()-1;J++)
{
text1.setText(text1.getText()+hide.charAt(J));
}
text1.setText(text1.getText()+operation);
}
}
}else
{
text1.setText("");
}
baketcheck=true;
}
private void numberAction(String buttonNumber)
{
if(true==operaffer)
{
String txt2 = text1.getText();
boolean endwith2 = txt2.endsWith(")");
if(true!=endwith2)
{
if(!text1.getText().equals("0"))
{
if(numbcount<=5)
{
text1.setText(text1.getText()+buttonNumber);
numbcount++;
}
dotcheck=true;
baketsub=false;
String txt3 = text1.getText();
lensold = txt3.length();
System.out.println("len"+lensold);
check = txt3.contains(".");
System.out.println(check);
}else
{
String hide=text1.getText();
text1.setText("");
for(int J=0;J<hide.length()-1;J++)
{
text1.setText(text1.getText()+hide.charAt(J));
}
text1.setText(text1.getText()+buttonNumber);
}
}
}else
{
String txt4 = text1.getText();
int len = txt4.length();
String ss = txt4.substring(len-2);
System.out.println("ss "+ss);
if(ss.equals("+0") || ss.equals("-0") || ss.equals("*0") || ss.equals("/0"))
{
String hide=text1.getText();
text1.setText("");
for(int J=0;J<hide.length()-1;J++)
{
text1.setText(text1.getText()+hide.charAt(J));
}
text1.setText(text1.getText()+buttonNumber);
}
else
{
String txt5 = text1.getText();
boolean endwith3 = txt5.endsWith(")");
if(true!=endwith3)
{
if(numbcount1<=5)
{
text1.setText(text1.getText()+buttonNumber);
numbcount1++;
}
dotcheck=true;
baketsub=false;
String txt6 = text1.getText();
int le = txt6.length();
int subt = le-numbcount1;
String subs1 = txt6.substring(subt);
System.out.println("tt"+subt);
System.out.println("tt"+subs1);
check1 = subs1.contains(".");
System.out.println("tt"+check1);
check=false;
}
}
}
baketcheck=false;
String txt = text1.getText();
int ff = txt.length();
System.out.print("ffss"+ff);
if(ff>=14)
{
StyleConstants.setFontSize(attrib, 25);
text1.setParagraphAttributes(attrib, true);
if(ff>=25)
{
StyleConstants.setFontSize(attrib, 20);
text1.setParagraphAttributes(attrib, true);
}
}
}
private void dots(String dot)
{
String txt7 = text1.getText();
boolean endwith4 = txt7.endsWith(dot);
if(true == dotcheck)
{
if(check==false && check1==false)
{
if(false==endwith4)
{
text1.setText(text1.getText()+dot);
}
}
}
}
public void total()
{
try
{
Object result = engine.eval(text1.getText());
if(result==null)
{
text1.setText("Wrong null");
}else
{
text1.setText("\n ="+result.toString());
}
}
catch(ScriptException es)
{
text1.setText("Wrong format");
}
}
private void cancel1() {
if(!text1.getText().equals(""))
{
String txt8 = text1.getText();
boolean endwith5 = txt8.endsWith("(");
if(true==endwith5)
{
String hide=text1.getText();
text1.setText("");
for(int J=0;J<hide.length()-1;J++)
{
text1.setText(text1.getText()+hide.charAt(J));
}
baketcount--;
baketcount1=1;
baketsub=true;
}else
{
String txt9 = text1.getText();
int length = txt9.length();
String subs2 = txt9.substring(length-1);
System.out.println(subs2);
if(subs2.equals("+") || subs2.equals("-") ||subs2.equals("/") || subs2.equals("-") )
{
String hide=text1.getText();
text1.setText("");
for(int J=0;J<hide.length()-1;J++)
{
text1.setText(text1.getText()+hide.charAt(J));
}
opercount--;
}else
{
if(length<=lensold)
{
String hide=text1.getText();
text1.setText("");
for(int J=0;J<hide.length()-1;J++)
{
text1.setText(text1.getText()+hide.charAt(J));
}
numbcount--;
operaffer=true;
baketsub=true;
baketcheck=true;
}else
{
String hide=text1.getText();
text1.setText("");
for(int J=0;J<hide.length()-1;J++)
{
text1.setText(text1.getText()+hide.charAt(J));
}
numbcount1--;
}
}
}
String txt = text1.getText();
int ff = txt.length();
System.out.print("ffss"+ff);
if(ff<=14)
{
StyleConstants.setFontSize(attrib, 30);
text1.setParagraphAttributes(attrib, true);
}
}
}
private void Baket()
{
if(baketcheck==true)
{
text1.setText(text1.getText()+"(");
baketcount++;
}else
{
if(baketcount1<=baketcount)
{
text1.setText(text1.getText()+")");
baketcount1++;
}else
{
text1.setText(text1.getText()+"*");
baketcheck=true;
operaffer=false;
numbcount1=1;
opercount++;
}
}
System.out.print(baketcount);
}
private void baketsub()
{
if(text1.getText().equals(""))
{
if(baketsub==true)
{
text1.setText(text1.getText()+"(-");
}
baketcheck=false;
baketcount++;
opercount++;
}
}
private static class ScrollLookandFeel extends BasicScrollBarUI {
private ScrollLookandFeel() {
}
@Override
protected void configureScrollBarColors() {
thumbColor = Color.LIGHT_GRAY;
thumbDarkShadowColor = Color.LIGHT_GRAY;
thumbHighlightColor = Color.LIGHT_GRAY;
thumbLightShadowColor = Color.lightGray;
trackColor = new Color(245, 245, 245);
trackHighlightColor = new Color(245, 245, 245);
}
@Override
protected JButton createDecreaseButton(int orientation) {
JButton button = new BasicArrowButton(orientation);
button.setBackground(new Color(245, 245, 245));
button.setForeground(new Color(245, 245, 245));
button.setBorder(new EmptyBorder(10, 10, 10, 10));
return button;
}
@Override
protected JButton createIncreaseButton(int orientation) {
JButton button = new BasicArrowButton(orientation);
button.setBackground(new Color(245, 245, 245));
button.setForeground(new Color(245, 245, 245));
button.setBorder(new EmptyBorder(10, 10, 10, 10));
return button;
}
}
class WrapEditorKit extends StyledEditorKit
{
final ViewFactory defaults = new WrapColumnFactory();
@Override
public ViewFactory getViewFactory()
{
return defaults;
}
}
class WrapColumnFactory implements ViewFactory
{
@Override
public View create(Element elem) {
String ki = elem.getName();
if(ki!=null)
{
switch (ki) {
case AbstractDocument.ContentElementName:
return new WrapLabelView(elem);
case AbstractDocument.ParagraphElementName:
return new ParagraphView(elem);
case AbstractDocument.SectionElementName:
return new BoxView(elem, View.Y_AXIS);
case StyleConstants.ComponentElementName:
return new ComponentView(elem);
case StyleConstants.IconElementName:
return new IconView(elem);
}
}
return new LabelView(elem);
}
}
class WrapLabelView extends LabelView
{
public WrapLabelView(Element elem)
{
super(elem);
}
@Override
public float getMinimumSpan(int axis)
{
switch (axis)
{
case View.X_AXIS:
return 0;
case View.Y_AXIS:
return super.getMinimumSpan(axis);
default:
throw new IllegalArgumentException("Invalid axis"+axis);
}
}
}
public static void main(String []args)
{
Calculator c = new Calculator();
}
}