0
What is the program in Java to simulate a Scientific calculator?
Wiki User
∙ 11y ago
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.event.*;
public class ScientificCalculator extends JFrame implements ActionListener {
JTextField tfield;
double temp, temp1, result, a;
static double m1, m2;
int k = 1, x = 0, y = 0, z = 0;
char ch;
JButton b1, b2, b3, b4, b5, b6, b7, b8, b9, zero, clr, pow2, pow3, exp,
fac, plus, min, div, log, rec, mul, eq, addSub, dot, mr, mc, mp,
mm, sqrt, sin, cos, tan;
Container cont;
JPanel textPanel, buttonpanel;
ScientificCalculator() {
cont = getContentPane();
cont.setLayout(new BorderLayout());
JPanel textpanel = new JPanel();
tfield = new JTextField(25);
tfield.setHorizontalAlignment(SwingConstants.RIGHT);
tfield.addKeyListener(new KeyAdapter() {
public void keyTyped(KeyEvent keyevent) {
char c = keyevent.getKeyChar();
if (c >= '0' && c <= '9') {
} else {
keyevent.consume();
}
}
});
textpanel.add(tfield);
buttonpanel = new JPanel();
buttonpanel.setLayout(new GridLayout(8, 4, 2, 2));
boolean t = true;
mr = new JButton("MR");
buttonpanel.add(mr);
mr.addActionListener(this);
mc = new JButton("MC");
buttonpanel.add(mc);
mc.addActionListener(this);
mp = new JButton("M+");
buttonpanel.add(mp);
mp.addActionListener(this);
mm = new JButton("M-");
buttonpanel.add(mm);
mm.addActionListener(this);
b1 = new JButton("1");
buttonpanel.add(b1);
b1.addActionListener(this);
b2 = new JButton("2");
buttonpanel.add(b2);
b2.addActionListener(this);
b3 = new JButton("3");
buttonpanel.add(b3);
b3.addActionListener(this);
b4 = new JButton("4");
buttonpanel.add(b4);
b4.addActionListener(this);
b5 = new JButton("5");
buttonpanel.add(b5);
b5.addActionListener(this);
b6 = new JButton("6");
buttonpanel.add(b6);
b6.addActionListener(this);
b7 = new JButton("7");
buttonpanel.add(b7);
b7.addActionListener(this);
b8 = new JButton("8");
buttonpanel.add(b8);
b8.addActionListener(this);
b9 = new JButton("9");
buttonpanel.add(b9);
b9.addActionListener(this);
zero = new JButton("0");
buttonpanel.add(zero);
zero.addActionListener(this);
plus = new JButton("+");
buttonpanel.add(plus);
plus.addActionListener(this);
min = new JButton("-");
buttonpanel.add(min);
min.addActionListener(this);
mul = new JButton("*");
buttonpanel.add(mul);
mul.addActionListener(this);
div = new JButton("/");
div.addActionListener(this);
buttonpanel.add(div);
addSub = new JButton("+/-");
buttonpanel.add(addSub);
addSub.addActionListener(this);
dot = new JButton(".");
buttonpanel.add(dot);
dot.addActionListener(this);
eq = new JButton("=");
buttonpanel.add(eq);
eq.addActionListener(this);
rec = new JButton("1/x");
buttonpanel.add(rec);
rec.addActionListener(this);
sqrt = new JButton("Sqrt");
buttonpanel.add(sqrt);
sqrt.addActionListener(this);
log = new JButton("log");
buttonpanel.add(log);
log.addActionListener(this);
sin = new JButton("SIN");
buttonpanel.add(sin);
sin.addActionListener(this);
cos = new JButton("COS");
buttonpanel.add(cos);
cos.addActionListener(this);
tan = new JButton("TAN");
buttonpanel.add(tan);
tan.addActionListener(this);
pow2 = new JButton("x^2");
buttonpanel.add(pow2);
pow2.addActionListener(this);
pow3 = new JButton("x^3");
buttonpanel.add(pow3);
pow3.addActionListener(this);
exp = new JButton("Exp");
exp.addActionListener(this);
buttonpanel.add(exp);
fac = new JButton("n!");
fac.addActionListener(this);
buttonpanel.add(fac);
clr = new JButton("AC");
buttonpanel.add(clr);
clr.addActionListener(this);
cont.add("Center", buttonpanel);
cont.add("North", textpanel);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public void actionPerformed(ActionEvent e) {
String s = e.getActionCommand();
if (s.equals("1")) {
if (z == 0) {
tfield.setText(tfield.getText() + "1");
} else {
tfield.setText("");
tfield.setText(tfield.getText() + "1");
z = 0;
}
}
if (s.equals("2")) {
if (z == 0) {
tfield.setText(tfield.getText() + "2");
} else {
tfield.setText("");
tfield.setText(tfield.getText() + "2");
z = 0;
}
}
if (s.equals("3")) {
if (z == 0) {
tfield.setText(tfield.getText() + "3");
} else {
tfield.setText("");
tfield.setText(tfield.getText() + "3");
z = 0;
}
}
if (s.equals("4")) {
if (z == 0) {
tfield.setText(tfield.getText() + "4");
} else {
tfield.setText("");
tfield.setText(tfield.getText() + "4");
z = 0;
}
}
if (s.equals("5")) {
if (z == 0) {
tfield.setText(tfield.getText() + "5");
} else {
tfield.setText("");
tfield.setText(tfield.getText() + "5");
z = 0;
}
}
if (s.equals("6")) {
if (z == 0) {
tfield.setText(tfield.getText() + "6");
} else {
tfield.setText("");
tfield.setText(tfield.getText() + "6");
z = 0;
}
}
if (s.equals("7")) {
if (z == 0) {
tfield.setText(tfield.getText() + "7");
} else {
tfield.setText("");
tfield.setText(tfield.getText() + "7");
z = 0;
}
}
if (s.equals("8")) {
if (z == 0) {
tfield.setText(tfield.getText() + "8");
} else {
tfield.setText("");
tfield.setText(tfield.getText() + "8");
z = 0;
}
}
if (s.equals("9")) {
if (z == 0) {
tfield.setText(tfield.getText() + "9");
} else {
tfield.setText("");
tfield.setText(tfield.getText() + "9");
z = 0;
}
}
if (s.equals("0")) {
if (z == 0) {
tfield.setText(tfield.getText() + "0");
} else {
tfield.setText("");
tfield.setText(tfield.getText() + "0");
z = 0;
}
}
if (s.equals("AC")) {
tfield.setText("");
x = 0;
y = 0;
z = 0;
}
if (s.equals("log")) {
if (tfield.getText().equals("")) {
tfield.setText("");
} else {
a = Math.log(Double.parseDouble(tfield.getText()));
tfield.setText("");
tfield.setText(tfield.getText() + a);
}
}
if (s.equals("1/x")) {
if (tfield.getText().equals("")) {
tfield.setText("");
} else {
a = 1 / Double.parseDouble(tfield.getText());
tfield.setText("");
tfield.setText(tfield.getText() + a);
}
}
if (s.equals("Exp")) {
if (tfield.getText().equals("")) {
tfield.setText("");
} else {
a = Math.exp(Double.parseDouble(tfield.getText()));
tfield.setText("");
tfield.setText(tfield.getText() + a);
}
}
if (s.equals("x^2")) {
if (tfield.getText().equals("")) {
tfield.setText("");
} else {
a = Math.pow(Double.parseDouble(tfield.getText()), 2);
tfield.setText("");
tfield.setText(tfield.getText() + a);
}
}
if (s.equals("x^3")) {
if (tfield.getText().equals("")) {
tfield.setText("");
} else {
a = Math.pow(Double.parseDouble(tfield.getText()), 3);
tfield.setText("");
tfield.setText(tfield.getText() + a);
}
}
if (s.equals("+/-")) {
if (x == 0) {
tfield.setText("-" + tfield.getText());
x = 1;
} else {
tfield.setText(tfield.getText());
}
}
if (s.equals(".")) {
if (y == 0) {
tfield.setText(tfield.getText() + ".");
y = 1;
} else {
tfield.setText(tfield.getText());
}
}
if (s.equals("+")) {
if (tfield.getText().equals("")) {
tfield.setText("");
temp = 0;
ch = '+';
} else {
temp = Double.parseDouble(tfield.getText());
tfield.setText("");
ch = '+';
y = 0;
x = 0;
}
tfield.requestFocus();
}
if (s.equals("-")) {
if (tfield.getText().equals("")) {
tfield.setText("");
temp = 0;
ch = '-';
} else {
x = 0;
y = 0;
temp = Double.parseDouble(tfield.getText());
tfield.setText("");
ch = '-';
}
tfield.requestFocus();
}
if (s.equals("/")) {
if (tfield.getText().equals("")) {
tfield.setText("");
temp = 1;
ch = '/';
} else {
x = 0;
y = 0;
temp = Double.parseDouble(tfield.getText());
ch = '/';
tfield.setText("");
}
tfield.requestFocus();
}
if (s.equals("*")) {
if (tfield.getText().equals("")) {
tfield.setText("");
temp = 1;
ch = '*';
} else {
x = 0;
y = 0;
temp = Double.parseDouble(tfield.getText());
ch = '*';
tfield.setText("");
}
tfield.requestFocus();
}
if (s.equals("MC")) {
m1 = 0;
tfield.setText("");
}
if (s.equals("MR")) {
tfield.setText("");
tfield.setText(tfield.getText() + m1);
}
if (s.equals("M+")) {
if (k == 1) {
m1 = Double.parseDouble(tfield.getText());
k++;
} else {
m1 += Double.parseDouble(tfield.getText());
tfield.setText("" + m1);
}
}
if (s.equals("M-")) {
if (k == 1) {
m1 = Double.parseDouble(tfield.getText());
k++;
} else {
m1 -= Double.parseDouble(tfield.getText());
tfield.setText("" + m1);
}
}
if (s.equals("Sqrt")) {
if (tfield.getText().equals("")) {
tfield.setText("");
} else {
a = Math.sqrt(Double.parseDouble(tfield.getText()));
tfield.setText("");
tfield.setText(tfield.getText() + a);
}
}
if (s.equals("SIN")) {
if (tfield.getText().equals("")) {
tfield.setText("");
} else {
a = Math.sin(Double.parseDouble(tfield.getText()));
tfield.setText("");
tfield.setText(tfield.getText() + a);
}
}
if (s.equals("COS")) {
if (tfield.getText().equals("")) {
tfield.setText("");
} else {
a = Math.cos(Double.parseDouble(tfield.getText()));
tfield.setText("");
tfield.setText(tfield.getText() + a);
}
}
if (s.equals("TAN")) {
if (tfield.getText().equals("")) {
tfield.setText("");
} else {
a = Math.tan(Double.parseDouble(tfield.getText()));
tfield.setText("");
tfield.setText(tfield.getText() + a);
}
}
if (s.equals("=")) {
if (tfield.getText().equals("")) {
tfield.setText("");
} else {
temp1 = Double.parseDouble(tfield.getText());
switch (ch) {
case '+':
result = temp + temp1;
break;
case '-':
result = temp - temp1;
break;
case '/':
result = temp / temp1;
break;
case '*':
result = temp * temp1;
break;
}
tfield.setText("");
tfield.setText(tfield.getText() + result);
z = 1;
}
}
if (s.equals("n!")) {
if (tfield.getText().equals("")) {
tfield.setText("");
} else {
a = fact(Double.parseDouble(tfield.getText()));
tfield.setText("");
tfield.setText(tfield.getText() + a);
}
}
tfield.requestFocus();
}
double fact(double x) {
int er = 0;
if (x < 0) {
er = 20;
return 0;
}
double i, s = 1;
for (i = 2; i <= x; i += 1.0)
s *= i;
return s;
}
public static void main(String args[]) {
try {
UIManager
.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
} catch (Exception e) {
}
ScientificCalculator f = new ScientificCalculator();
f.setTitle("ScientificCalculator");
f.pack();
f.setVisible(true);
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Download code for scientific calculator in java?
yes
How do you program a reverse auto loan calculator in JAVA?
In order to program a reverse auto loan calculator in JAVA, you are going to need a lot of experience with JAVA. There are online tutorials that can help you set up with fundamentals of JAVA so that you will be able to create almost any basic program you want.
What do you mean by multithread program in java?
A Program in Java that spawns multiple threads is called a multithreaded program in Java.
What is java program on computers?
#!/usr/bin/perl print 'java program';
What is java virtucal mechine?
That refers to the program that runs the compiled Java program.
Report on calculator project in core java?
yes
What powder game doesnt need java?
Any program written for the Java technology needs Java. Any program NOT written for Java DOESN'T need it.
Java Track?
Java Track is the java training program offered by SynergisticIT
Where can one get the program Java?
The program Java can be downloaded from the official Java website on the internet. The program is free for personal use, so it can be downloaded without any cost by anyone.
What is a Java applet?
PCH answer small Embedded Java Program.
Do I need Java?
No, if a program needs Java it'll specify that it does in the installer package for the program or on the website for the program or a section usually called "Requirements" for a specific program.
What is a java programming?
A java program is a program that is coded and run in the programming language called java. Java is similar to c++ in structure, and is more common in web apps. C++ is the equivalent for more heavy duty programs such as most software used to compose a java program.
