Chciałbym zrobić aplikację, która będzie służyła jako kalkulator do rozwiązywania układu równań z 3 niewiadomymi oraz obliczenie funkcji kwadratowej.
Korzystam z NetBeans 7.4 i w prosty sposób stworzyłem okna, które zawierają potrzebne pola do wpisywania wartości oraz guziki do obsługi zdarzeń.
Zaznaczam, że część "logiczną" programu pisałem osobno i wszystko działa jak należy. Chciałbym jednak przenieść teraz to wszystko do okienek, które stworzyłem przez interfejs JFrame.
Kod części "logicznej" programu
package uklad;
import java.io.IOException;
import java.util.Scanner;
public class Uklad {
/**
* @param args the command line arguments
* @throws java.io.IOException
*/
public static void main(String[] args) throws IOException {
System.out.println("Kalkulator rozwiązywania układów równań (do 3 niewiadomych)\noraz fukcji kwadratowych.\n");
char choice;
for ( ; ;) {
do {
System.out.println("Wybierz co chcesz obliczyć.\n 1. Układ równań.\n 2. Fukcja kwadratowa");
do {
choice = (char) System.in.read();
} while (choice == 'n' | choice == '\r');
} while (choice < '1' | choice > '2');
if (choice == 'w') break;
switch (choice) {
case '1':
Scanner in = new Scanner(System.in);
double a1, b1, c1, d1, a2, b2, c2, d2, a3, b3, c3, d3;
System.out.println("Postać układu:\n");
System.out.println("a1*x + b1*y + c1*z = d1");
System.out.println("a2*x + b2*y + c2*z = d2");
System.out.println("a3*x + b3*y + c3*z = d3 \n");
System.out.println("Podaj a1, b1, c1, d1, a2, b2, c2, d2, a3, b3, c3, d3.");
System.out.print("a1: "); a1 = in.nextDouble();
System.out.print("b1: "); b1 = in.nextDouble();
System.out.print("c1: "); c1 = in.nextDouble();
System.out.print("d1: "); d1 = in.nextDouble();
System.out.print("a2: "); a2 = in.nextDouble();
System.out.print("b2: "); b2 = in.nextDouble();
System.out.print("c2: "); c2 = in.nextDouble();
System.out.print("d2: "); d2 = in.nextDouble();
System.out.print("a3: "); a3 = in.nextDouble();
System.out.print("b3: "); b3 = in.nextDouble();
System.out.print("c3: "); c3 = in.nextDouble();
System.out.print("d3: "); d3 = in.nextDouble();
System.out.println("Podany układ równań: ");
System.out.println(a1 + "x + " + b1 + "y + " + c1 + "z" + " = " + d1);
System.out.println(a2 + "x + " + b2 + "y + " + c2 + "z" + " = " + d2);
System.out.println(a3 + "x + " + b3 + "y + " + c3 + "z" + " = " + d3);
// Rozwiązanie za pomocą metody wyznaczników:
double w = a1*b2*c3 + a2*b3*c1 + a3*b1*c2 - a3*b2*c1 - a2*b1*c3 - a1*b3*c2;
double wx = d1*b2*c3 + d2*b3*c1 + d3*b1*c2 - d3*b2*c1 - d2*b1*c3 - d1*b3*c2;
double wy = a1*d2*c3 + a2*d3*c1 + a3*d1*c2 - a3*d2*c1 - a2*d1*c3 - a1*d3*c2;
double wz = a1*b2*d3 + a2*b3*d1 + a3*b1*d2 - a3*b2*d1 - a1*b3*d2 - a2*b1*d3;
if (w != 0) {
System.out.println("Układ równań jest oznaczony.");
System.out.println("x = " + (wx / w));
System.out.println("y = " + (wy / w));
System.out.println("z = " + (wz / w));
} else if (wx != 0 || wy != 0 || wz != 0)
System.out.println("Układ równań jest sprzeczny. Brak rozwiązań.");
else
System.out.println("Układ równań jest nieoznaczony. Istnieje nieskończenie wiele rozwiązań.");
break;
case '2':
System.out.println("Funckja kwadratowa ma postać:\n"
+ "Ax^2 + By + C\n"
+ "Wprowadź wartości dla poszczególnych wyznaczników (kolejno: A, B, C).");
Scanner in1 = new Scanner(System.in);
double a, b, c, delta, sqrtdelta, pierwiastek0, pierwiastek1, pierwiastek2, wykres;
System.out.print("A: ");
a = in1.nextDouble();
System.out.print("B: ");
b = in1.nextDouble();
System.out.print("C: ");
c = in1.nextDouble();
System.out.println("Twoja funkcja ma postać:\n"
+ a + "x^2 + " + b + "y + " + c);
delta = (b*b-4*a*c);
sqrtdelta = Math.sqrt(delta);
if (delta > 0) {
pierwiastek1 = ((- b - sqrtdelta)/2*a);
pierwiastek2 = ((- b + sqrtdelta)/2*a);
System.out.println("\n" + "Delta wynosi: " + delta + "\n" + "Pierwiastek z delty wynosi: "
+ sqrtdelta + "\n" + "Miejsca zerowe: x1 = " + pierwiastek1 + " x2 = " + pierwiastek2 + ".\n");
}
else if (delta == 0) {
pierwiastek0 = (-b/(2*a));
System.out.println("\n Delta wynosi " + delta + "\n Miejsce zerowe: x0 = " + pierwiastek0 + ".\n");
}
else {
System.out.println("Delta jest ujemna. Funkcja nie ma miejsc zerowych.");
break;
}
}
}
}
}
Kod do "okienka"
package kalkulator.zaliczenie;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Scanner;
/**
*
* @author Kupa
*/
public class Kalkulator_uklad extends javax.swing.JFrame implements ActionListener {
private Readable Kalkulator_uklad;
public Kalkulator_uklad() {
initComponents();
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jScrollPane4 = new javax.swing.JScrollPane();
jTextArea4 = new javax.swing.JTextArea();
txt_a1 = new javax.swing.JTextField();
txt_b1 = new javax.swing.JTextField();
txt_c1 = new javax.swing.JTextField();
txt_d1 = new javax.swing.JTextField();
txt_a2 = new javax.swing.JTextField();
txt_b2 = new javax.swing.JTextField();
txt_c2 = new javax.swing.JTextField();
txt_d2 = new javax.swing.JTextField();
txt_a3 = new javax.swing.JTextField();
txt_b3 = new javax.swing.JTextField();
txt_c3 = new javax.swing.JTextField();
txt_d3 = new javax.swing.JTextField();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
jLabel5 = new javax.swing.JLabel();
jLabel6 = new javax.swing.JLabel();
jLabel7 = new javax.swing.JLabel();
jLabel8 = new javax.swing.JLabel();
jLabel9 = new javax.swing.JLabel();
jLabel10 = new javax.swing.JLabel();
jLabel11 = new javax.swing.JLabel();
jLabel12 = new javax.swing.JLabel();
jLabel13 = new javax.swing.JLabel();
jLabel14 = new javax.swing.JLabel();
g_oblicz = new javax.swing.JButton();
g_wyczysc = new javax.swing.JButton();
g_powrot = new javax.swing.JButton();
x_wynik = new javax.swing.JTextField();
y_wynik = new javax.swing.JTextField();
z_wynik = new javax.swing.JTextField();
jScrollPane4.setVerticalScrollBarPolicy(javax.swing.ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER);
jScrollPane4.setHorizontalScrollBar(null);
jScrollPane4.setWheelScrollingEnabled(false);
jTextArea4.setColumns(20);
jTextArea4.setRows(5);
jScrollPane4.setViewportView(jTextArea4);
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
txt_a1.setHorizontalAlignment(javax.swing.JTextField.CENTER);
txt_a1.setText("a1");
txt_a1.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
txt_a1.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR));
txt_a1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txt_a1ActionPerformed(evt);
}
});
txt_b1.setHorizontalAlignment(javax.swing.JTextField.CENTER);
txt_b1.setText("b1");
txt_b1.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
txt_b1.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR));
txt_b1.setName(""); // NOI18N
txt_b1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txt_b1ActionPerformed(evt);
}
});
txt_c1.setHorizontalAlignment(javax.swing.JTextField.CENTER);
txt_c1.setText("c1");
txt_c1.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
txt_c1.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR));
txt_c1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txt_c1ActionPerformed(evt);
}
});
txt_d1.setHorizontalAlignment(javax.swing.JTextField.CENTER);
txt_d1.setText("d1");
txt_d1.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
txt_d1.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR));
txt_d1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txt_d1ActionPerformed(evt);
}
});
txt_a2.setHorizontalAlignment(javax.swing.JTextField.CENTER);
txt_a2.setText("a2");
txt_a2.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
txt_a2.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR));
txt_a2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txt_a2ActionPerformed(evt);
}
});
txt_b2.setHorizontalAlignment(javax.swing.JTextField.CENTER);
txt_b2.setText("b2");
txt_b2.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
txt_b2.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR));
txt_b2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txt_b2ActionPerformed(evt);
}
});
txt_c2.setHorizontalAlignment(javax.swing.JTextField.CENTER);
txt_c2.setText("c2");
txt_c2.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
txt_c2.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR));
txt_c2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txt_c2ActionPerformed(evt);
}
});
txt_d2.setHorizontalAlignment(javax.swing.JTextField.CENTER);
txt_d2.setText("d2");
txt_d2.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
txt_d2.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR));
txt_d2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txt_d2ActionPerformed(evt);
}
});
txt_a3.setHorizontalAlignment(javax.swing.JTextField.CENTER);
txt_a3.setText("a3");
txt_a3.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
txt_a3.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR));
txt_a3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txt_a3ActionPerformed(evt);
}
});
txt_b3.setHorizontalAlignment(javax.swing.JTextField.CENTER);
txt_b3.setText("b3");
txt_b3.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
txt_b3.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR));
txt_b3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txt_b3ActionPerformed(evt);
}
});
txt_c3.setHorizontalAlignment(javax.swing.JTextField.CENTER);
txt_c3.setText("c3");
txt_c3.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
txt_c3.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR));
txt_c3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txt_c3ActionPerformed(evt);
}
});
txt_d3.setHorizontalAlignment(javax.swing.JTextField.CENTER);
txt_d3.setText("d3");
txt_d3.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
txt_d3.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR));
txt_d3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txt_d3ActionPerformed(evt);
}
});
jLabel1.setText("+");
jLabel2.setText("+");
jLabel3.setText("=");
jLabel4.setText("+");
jLabel5.setText("+");
jLabel6.setText("=");
jLabel7.setText("+");
jLabel8.setText("+");
jLabel9.setText("=");
jLabel10.setFont(new java.awt.Font("Times New Roman", 1, 14)); // NOI18N
jLabel10.setText("Układ równań");
jLabel11.setFont(new java.awt.Font("Times New Roman", 1, 14)); // NOI18N
jLabel11.setText("Rozwiązanie");
jLabel12.setFont(new java.awt.Font("Times New Roman", 0, 12)); // NOI18N
jLabel12.setText("x =");
jLabel12.setBorder(javax.swing.BorderFactory.createTitledBorder(""));
jLabel13.setFont(new java.awt.Font("Times New Roman", 0, 12)); // NOI18N
jLabel13.setText("y =");
jLabel13.setBorder(javax.swing.BorderFactory.createTitledBorder(""));
jLabel14.setFont(new java.awt.Font("Times New Roman", 0, 12)); // NOI18N
jLabel14.setText("z =");
jLabel14.setBorder(javax.swing.BorderFactory.createTitledBorder(""));
g_oblicz.setFont(new java.awt.Font("Times New Roman", 0, 14)); // NOI18N
g_oblicz.setText("Oblicz");
g_oblicz.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
g_obliczActionPerformed(evt);
}
});
g_wyczysc.setFont(new java.awt.Font("Times New Roman", 0, 14)); // NOI18N
g_wyczysc.setText("Wyczyść");
g_powrot.setFont(new java.awt.Font("Times New Roman", 0, 14)); // NOI18N
g_powrot.setText("Powrót");
g_powrot.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
g_powrotActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(46, 46, 46)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addComponent(jLabel14, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jLabel13, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 28, Short.MAX_VALUE)
.addComponent(jLabel12, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(171, 171, 171)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(g_wyczysc, javax.swing.GroupLayout.DEFAULT_SIZE, 90, Short.MAX_VALUE)
.addComponent(g_powrot, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
.addGroup(layout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(z_wynik, javax.swing.GroupLayout.DEFAULT_SIZE, 89, Short.MAX_VALUE)
.addComponent(y_wynik))
.addGap(0, 0, Short.MAX_VALUE))))
.addComponent(jLabel10, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel11, javax.swing.GroupLayout.PREFERRED_SIZE, 83, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(115, 115, 115))
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(txt_a3)
.addComponent(txt_a2)
.addGroup(layout.createSequentialGroup()
.addComponent(txt_a1, javax.swing.GroupLayout.PREFERRED_SIZE, 58, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 0, Short.MAX_VALUE)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel4)
.addComponent(jLabel1)
.addComponent(jLabel7))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(txt_b3)
.addComponent(txt_b2)
.addGroup(layout.createSequentialGroup()
.addComponent(txt_b1, javax.swing.GroupLayout.PREFERRED_SIZE, 53, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 0, Short.MAX_VALUE))))
.addGroup(layout.createSequentialGroup()
.addGap(0, 0, Short.MAX_VALUE)
.addComponent(x_wynik, javax.swing.GroupLayout.PREFERRED_SIZE, 88, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jLabel5, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jLabel8, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(txt_c2)
.addComponent(txt_c3)
.addGroup(layout.createSequentialGroup()
.addComponent(txt_c1, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 0, Short.MAX_VALUE)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(g_oblicz, javax.swing.GroupLayout.DEFAULT_SIZE, 90, Short.MAX_VALUE)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel3, javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jLabel6, javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jLabel9, javax.swing.GroupLayout.Alignment.TRAILING))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(txt_d1, javax.swing.GroupLayout.DEFAULT_SIZE, 78, Short.MAX_VALUE)
.addComponent(txt_d2)
.addComponent(txt_d3))))))
.addGap(303, 303, 303))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(18, 18, 18)
.addComponent(jLabel10, javax.swing.GroupLayout.PREFERRED_SIZE, 21, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(txt_a1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(txt_b1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(txt_c1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(txt_d1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel1)
.addComponent(jLabel2)
.addComponent(jLabel3))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(txt_a2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel4)
.addComponent(jLabel5)
.addComponent(jLabel6)
.addComponent(txt_b2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(txt_c2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(txt_d2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(txt_a3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel7)
.addComponent(jLabel8)
.addComponent(jLabel9)
.addComponent(txt_b3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(txt_c3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(txt_d3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 43, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel11, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(g_oblicz))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(21, 21, 21)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel12)
.addComponent(x_wynik, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(g_wyczysc)
.addGap(3, 3, 3)))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel13)
.addComponent(y_wynik, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(11, 11, 11)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel14)
.addComponent(z_wynik, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addComponent(g_powrot))
.addGap(40, 40, 40))
);
pack();
}// </editor-fold>
private void txt_b1ActionPerformed(java.awt.event.ActionEvent evt) {
String input = txt_b1.getText();
input = input.trim();
}
private void txt_a1ActionPerformed(java.awt.event.ActionEvent evt) {
String input = txt_a1.getText();
input = input.trim();
}
private void g_powrotActionPerformed(java.awt.event.ActionEvent evt) {
Kalkulator_Zaliczenie g_powrot = new Kalkulator_Zaliczenie();
g_powrot.setVisible(true);
}
private void txt_c1ActionPerformed(java.awt.event.ActionEvent evt) {
String input = txt_c1.getText();
input = input.trim();
}
private void txt_d1ActionPerformed(java.awt.event.ActionEvent evt) {
String input = txt_d1.getText();
input = input.trim();
}
private void txt_a2ActionPerformed(java.awt.event.ActionEvent evt) {
String input = txt_a2.getText();
input = input.trim();
}
private void txt_b2ActionPerformed(java.awt.event.ActionEvent evt) {
String input = txt_b2.getText();
input = input.trim();
}
private void txt_c2ActionPerformed(java.awt.event.ActionEvent evt) {
String input = txt_c2.getText();
input = input.trim();
}
private void txt_d2ActionPerformed(java.awt.event.ActionEvent evt) {
String input = txt_d2.getText();
input = input.trim();
}
private void txt_a3ActionPerformed(java.awt.event.ActionEvent evt) {
String input = txt_a3.getText();
input = input.trim();
}
private void txt_b3ActionPerformed(java.awt.event.ActionEvent evt) {
String input = txt_b3.getText();
input = input.trim();
}
private void txt_c3ActionPerformed(java.awt.event.ActionEvent evt) {
String input = txt_c3.getText();
input = input.trim();
}
private void txt_d3ActionPerformed(java.awt.event.ActionEvent evt) {
String input = txt_d3.getText();
input = input.trim();
}
private void g_obliczActionPerformed(java.awt.event.ActionEvent evt) {
g_oblicz.addActionListener(this);
Scanner in = new Scanner(Kalkulator_uklad);
int a1 = 0, b1 = 0, c1 = 0, d1 = 0, a2 = 0, b2 = 0,
c2 = 0, d2 = 0, a3 = 0, b3 = 0, c3 = 0, d3 = 0;
int x_wynik;
int y_wynik;
int z_wynik;
int w = a1*b2*c3 + a2*b3*c1 + a3*b1*c2 - a3*b2*c1 - a2*b1*c3 - a1*b3*c2;
int wx = d1*b2*c3 + d2*b3*c1 + d3*b1*c2 - d3*b2*c1 - d2*b1*c3 - d1*b3*c2;
int wy = a1*d2*c3 + a2*d3*c1 + a3*d1*c2 - a3*d2*c1 - a2*d1*c3 - a1*d3*c2;
int wz = a1*b2*d3 + a2*b3*d1 + a3*b1*d2 - a3*b2*d1 - a1*b3*d2 - a2*b1*d3;
if (w!=0) {
x_wynik = wx/w;
y_wynik = wy/w;
z_wynik = wz/w;
}
/**
* @param args the command line arguments
*/
// public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Kalkulator_uklad.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Kalkulator_uklad.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Kalkulator_uklad.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Kalkulator_uklad.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Kalkulator_uklad().setVisible(true);
}
});
}
Problem polega na tym, że nie bardzo mogę poradzić sobie z tym, żeby po kliknięciu guzika "Oblicz" wykonywały się wszystkie operacje i w podanych polach pojawiał się wynik (w tym przypadku obliczenie wartości x,y,z).
Chyba powinienem skorzystać w którymś miejscu z ActionListener, ale nie wiem dokładnie gdzie.
Proszę o pomoc!