import java.awt.Button;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.Panel;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
class JsqFrame extends Frame {
double d1, d2;
int op = -1;
static TextField tf;
CalPanelL p1;
// Constructor
JsqFrame() {
super("计算器");
setLayout(new FlowLayout());
setResizable(false);
setSize(250,250);
tf = new TextField(18);
tf.setEditable(false);
tf.setBackground(Color.lightGray);
tf.setForeground(Color.red);
tf.setFont(new Font("Arial",Font.BOLD,16));
add(tf);
p1 = new CalPanelL();
add(p1);
setVisible(true);
//addWindowListener(new Wclose());
}
// inner class:CalButton
class CalButton extends Button {
CalButton(String s){
super(s);
setBackground(Color.WHITE);
}
}
// inner class: CalPanelL
class CalPanelL extends Panel {
CalButton a,c,b0, b1, b2, b3, b4, b5, b6, b7,
b8, b9, bPN, bPoint,
bAdd, bSub, bMul, bDiv,bL,bR,
bLn, bEqual, bCE, bQuit;
CalPanelL() {
setLayout(new GridLayout(6,4));
setFont(new Font("TimesRoman",Font.BOLD,16));
a=new CalButton("");
c=new CalButton("");
b0 = new CalButton("0");
b1 = new CalButton("1");
b2 = new CalButton("2");
b3 = new CalButton("3");
b4 = new CalButton("4");
b5 = new CalButton("5");
b6 = new CalButton("6");
b7 = new CalButton("7");
b8 = new CalButton("8");
b9 = new CalButton("9");
bPN = new CalButton("+/-");
bPoint = new CalButton(".");
//设置按钮
bAdd = new CalButton("+");
bSub = new CalButton("-");
bMul = new CalButton("*");
bDiv = new CalButton("/");
bL = new CalButton("(");
bR = new CalButton(")");
bLn = new CalButton("ln");
bEqual = new CalButton("=");
bCE = new CalButton("CE");
bQuit = new CalButton("退出");
// 加入按钮
add(a);add(c);
add(bCE); bCE.addActionListener(new PressBCE());
add(bQuit); bQuit.addActionListener(new PressBQuit());
add(b7); b7.addActionListener(new PressB7());
add(b8); b8.addActionListener(new PressB8());
add(b9); b9.addActionListener(new PressB9());
add(bDiv); bDiv.addActionListener(new PressBDiv());
add(b4); b4.addActionListener(new PressB4());
add(b5); b5.addActionListener(new PressB5());
add(b6); b6.addActionListener(new PressB6());
add(bMul); bMul.addActionListener(new PressBMul());
add(b1); b1.addActionListener(new PressB1());
add(b2); b2.addActionListener(new PressB2());
add(b3); b3.addActionListener(new PressB3());
add(bSub); bSub.addActionListener(new PressBSub());
add(b0); b0.addActionListener(new PressB0());
add(bPoint); bPoint.addActionListener(new PressBPoint());
add(bPN); bPN.addActionListener(new PressBPN()); ;
add(bAdd); bAdd.addActionListener(new PressBAdd());
add(bL); bL.addActionListener(new PressBL());
add(bR); bR.addActionListener(new PressBR());
add(bLn); bLn.addActionListener(new PressBLn());
add(bEqual); bEqual.addActionListener(new PressBEqual());
}
}
class PressBAdd implements ActionListener {
public void actionPerformed(ActionEvent e) {
try {
String d1 = tf.getText();
op = 0;
tf.setText(d1+"+");
} catch(Exception ee) {}
}
}
class PressBSub implements ActionListener {
public void actionPerformed(ActionEvent e) {
try {
String d1=tf.getText();
op = 1;
tf.setText(d1+"-");
} catch(Exception ee) {}
}
}
class PressBMul implements ActionListener {
public void actionPerformed(ActionEvent e) {
try {
String d1=tf.getText();
op = 2;
tf.setText(d1+"*");
} catch(Exception ee) {}
}
}
class PressBDiv implements ActionListener {
public void actionPerformed(ActionEvent e) {
try {
String d1=tf.getText();
op = 3;
tf.setText(d1+"/");
} catch(Exception ee) {}
}
}
class PressBL implements ActionListener {
public void actionPerformed(ActionEvent e) {
try {
String d1=tf.getText();
op = 3;
tf.setText(d1+"(");
} catch(Exception ee) {}
}
}
class PressBR implements ActionListener {
public void actionPerformed(ActionEvent e) {
try {
String d1=tf.getText();
op = 3;
tf.setText(d1+")");
} catch(Exception ee) {}
}
}
class PressBEqual implements ActionListener {
public void actionPerformed(ActionEvent e) {
try {
Jsq jsq=new Jsq();
String s = tf.getText();
System.out.println(s);
while(s.indexOf("(")+1>0&&s.indexOf(")")>0){
String s1=jsq.caculateHigh(s);
System.out.println(s1);
s=s1;
}
String str=jsq.cacluteMain(s);
System.out.println(str);
tf.setText(String.valueOf(str));
} catch(Exception ee) {}
}
}
class PressBLn implements ActionListener {
public void actionPerformed(ActionEvent e) {
try {
double x = Double.parseDouble(tf.getText());
double y;
y = Math.log10(x);
tf.setText(y+"");
} catch(Exception ee) {}
}
}
class PressBCE implements ActionListener {
public void actionPerformed(ActionEvent e) {
tf.setText("");
}
}
class PressBPN implements ActionListener {
public void actionPerformed(ActionEvent e) {
try {
String text = tf.getText();
if (text != "") {
if(text.charAt(0) == '-')
tf.setText(text.substring(1));
else if(text.charAt(0) >= '0' && text.charAt(0) <= '9')
tf.setText("-"+text.substring(0));
else if(text.charAt(0) == '.')
tf.setText("-0"+text.substring(0));
}
} catch(Exception ee) { }
}
}
class PressBPoint implements ActionListener {
public void actionPerformed(ActionEvent e) {
String text = tf.getText();
if(text.lastIndexOf(".") == -1)
tf.setText(text+".");
}
}
class PressB0 implements ActionListener {
public void actionPerformed(ActionEvent e) {
String text = tf.getText();
tf.setText(text+"0");
}
}
class PressB1 implements ActionListener {
public void actionPerformed(ActionEvent e) {
String text = tf.getText();
tf.setText(text+"1");
}
}
class PressB2 implements ActionListener {
public void actionPerformed(ActionEvent e) {
String text = tf.getText();
tf.setText(text+"2");
}
}
class PressB3 implements ActionListener {
public void actionPerformed(ActionEvent e) {
String text = tf.getText();
tf.setText(text+"3");
}
}
class PressB4 implements ActionListener {
public void actionPerformed(ActionEvent e) {
String text = tf.getText();
tf.setText(text+"4");
}
}
class PressB5 implements ActionListener {
public void actionPerformed(ActionEvent e) {
String text = tf.getText();
tf.setText(text+"5");
}
}
class PressB6 implements ActionListener {
public void actionPerformed(ActionEvent e) {
String text = tf.getText();
tf.setText(text+"6");
}
}
class PressB7 implements ActionListener {
public void actionPerformed(ActionEvent e) {
String text = tf.getText();
tf.setText(text+"7");
}
}
class PressB8 implements ActionListener {
public void a
jsq.rar （31个子文件） 
jsq bin 
JsqFrame$PressB2.class 1016B JsqFrame$PressBPN.class 1KB JsqFrame$PressBCE.class 699B JsqFrame$PressB0.class 1016B JsqFrame$PressBL.class 1KB JsqFrame$PressBDiv.class 1KB JsqFrame$PressB8.class 1016B JsqFrame$CalPanelL.class 4KB JsqFrame$PressB9.class 1016B JsqFrame$PressBLn.class 1KB JsqFrame$PressBR.class 1KB JsqFrame$PressBMul.class 1KB JsqFrame$PressBSub.class 1KB JsqFrame$PressB5.class 1016B JsqFrame.class 2KB JsqFrame$PressBPoint.class 1KB JsqFrame$PressBQuit.class 635B JsqFrame$PressBEqual.class 1KB Jsq.class 3KB JsqFrame$PressBAdd.class 1KB JsqFrame$PressB1.class 1016B JsqFrame$PressB7.class 1016B JsqFrame$PressB3.class 1016B JsqFrame$CalButton.class 578B JsqFrame$PressB6.class 1016B JsqFrame$PressB4.class 1016B .settings org.eclipse.jdt.core.prefs 629B src JsqFrame.java 8KB Jsq.java 3KB .project 379B .classpath 301B
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