Galera queria a opinião de vocês sobre esse exercicio que eu mesmo dei para mim fazer:
Resolver as equações de primeiro e segundo grau simples em um programinha basico kkk
dai consegui fazer assim, avaliem e veja se ta legal:
[color=red]Equação de Primeiro Grau[/color]
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.border.EmptyBorder;
public class EquacaoPrimeiroGrau extends JFrame {
private JPanel contentPane;
private JTextField text1;
private JTextField text2;
private JLabel label;
private JTextField text3;
private JLabel lblNewLabel;
private JLabel lblNewLabel_1;
public EquacaoPrimeiroGrau() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 285, 128);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JLabel lblResultado = new JLabel("Resultado:");
lblResultado.setBounds(10, 65, 76, 14);
contentPane.add(lblResultado);
text1 = new JTextField();
text1.setHorizontalAlignment(SwingConstants.CENTER);
text1.setBounds(10, 27, 27, 20);
contentPane.add(text1);
text1.setColumns(10);
text2 = new JTextField();
text2.setHorizontalAlignment(SwingConstants.CENTER);
text2.setBounds(73, 27, 27, 20);
contentPane.add(text2);
text2.setColumns(10);
JLabel lblX = new JLabel("x +");
lblX.setFont(new Font("Tahoma", Font.BOLD, 13));
lblX.setHorizontalAlignment(SwingConstants.CENTER);
lblX.setBounds(27, 30, 59, 14);
contentPane.add(lblX);
label = new JLabel("=");
label.setFont(new Font("Tahoma", Font.BOLD, 13));
label.setHorizontalAlignment(SwingConstants.CENTER);
label.setBounds(96, 29, 27, 18);
contentPane.add(label);
text3 = new JTextField();
text3.setBounds(120, 27, 27, 20);
contentPane.add(text3);
text3.setColumns(10);
lblNewLabel = new JLabel("100");
lblNewLabel.setBounds(96, 65, 68, 14);
contentPane.add(lblNewLabel);
JButton btnNewButton = new JButton("Ok");
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
double um = Integer.parseInt(text1.getText());
double dois = Integer.parseInt(text2.getText());
double tres = Integer.parseInt(text3.getText());
double result = (tres-dois)/um;
String resultado = String.valueOf(result);
resultado = resultado.replace(".", ",");
lblNewLabel.setText(resultado);
}
});
btnNewButton.setBounds(184, 26, 59, 23);
contentPane.add(btnNewButton);
lblNewLabel_1 = new JLabel("Equa\u00E7\u00E3o de Primeiro Grau");
lblNewLabel_1.setFont(new Font("Script MT Bold", Font.BOLD, 15));
lblNewLabel_1.setHorizontalAlignment(SwingConstants.CENTER);
lblNewLabel_1.setBounds(0, 4, 269, 20);
contentPane.add(lblNewLabel_1);
setVisible(true);
}
public static void main(String[] args) {
new EquacaoPrimeiroGrau();
}
}
[color=red]Equação de Segundo Grau[/color]
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.border.EmptyBorder;
public class EquacaoDeSegundoGrau extends JFrame {
private JPanel contentPane;
private JTextField text1;
private JTextField text2;
private JTextField text3;
private JLabel lblEquaoDeSegundo;
private JButton btnOk;
private JLabel lblResultado;
private JLabel lblX_1;
private JLabel lblX_2;
private JLabel resultx1;
private JLabel resultx2;
public EquacaoDeSegundoGrau() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 344, 132);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
text1 = new JTextField();
text1.setBounds(10, 27, 29, 20);
contentPane.add(text1);
text1.setColumns(10);
JLabel lblNewLabel = new JLabel("x\u00B2 + ");
lblNewLabel.setFont(new Font("Tahoma", Font.BOLD, 13));
lblNewLabel.setHorizontalAlignment(SwingConstants.CENTER);
lblNewLabel.setBounds(38, 29, 40, 18);
contentPane.add(lblNewLabel);
text2 = new JTextField();
text2.setBounds(72, 27, 29, 20);
contentPane.add(text2);
text2.setColumns(10);
JLabel lblX = new JLabel("x -");
lblX.setFont(new Font("Tahoma", Font.BOLD, 13));
lblX.setHorizontalAlignment(SwingConstants.CENTER);
lblX.setBounds(100, 30, 29, 17);
contentPane.add(lblX);
text3 = new JTextField();
text3.setBounds(127, 27, 29, 20);
contentPane.add(text3);
text3.setColumns(10);
JLabel lblNewLabel_1 = new JLabel("= 0");
lblNewLabel_1.setHorizontalAlignment(SwingConstants.CENTER);
lblNewLabel_1.setFont(new Font("Tahoma", Font.BOLD, 13));
lblNewLabel_1.setBounds(149, 30, 45, 14);
contentPane.add(lblNewLabel_1);
lblEquaoDeSegundo = new JLabel("Equa\u00E7\u00E3o de Segundo Grau");
lblEquaoDeSegundo.setFont(new Font("Script MT Bold", Font.BOLD, 15));
lblEquaoDeSegundo.setHorizontalAlignment(SwingConstants.CENTER);
lblEquaoDeSegundo.setBounds(0, 0, 318, 25);
contentPane.add(lblEquaoDeSegundo);
btnOk = new JButton("Ok");
btnOk.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
double um = Double.parseDouble(text1.getText());
double dois = Double.parseDouble(text2.getText());
double tres = Double.parseDouble(text3.getText());
double delta = (dois*dois)-(4*um*(-tres));
double raizDelta = Math.sqrt(delta);
double x11= (-dois)+raizDelta;
double x12= 2*um;
double x21 = (-dois)-raizDelta;
double x22= 2*um;
String deltaString = String.valueOf(raizDelta);
if(!deltaString.endsWith(".0")){
JOptionPane.showMessageDialog(null, "Raiz de Delta não exata!");
}
resultx1.setText(x11+" / "+x12);
resultx2.setText(x21+" / "+x22);
}
});
btnOk.setBounds(228, 29, 58, 23);
contentPane.add(btnOk);
lblResultado = new JLabel("Resultado :");
lblResultado.setFont(new Font("Tahoma", Font.BOLD, 13));
lblResultado.setHorizontalAlignment(SwingConstants.CENTER);
lblResultado.setBounds(10, 58, 91, 25);
contentPane.add(lblResultado);
lblX_1 = new JLabel("x1 = ");
lblX_1.setHorizontalAlignment(SwingConstants.CENTER);
lblX_1.setBounds(110, 64, 29, 14);
contentPane.add(lblX_1);
lblX_2 = new JLabel("x2 = ");
lblX_2.setHorizontalAlignment(SwingConstants.CENTER);
lblX_2.setBounds(223, 64, 29, 14);
contentPane.add(lblX_2);
resultx1 = new JLabel("");
resultx1.setBounds(137, 64, 78, 14);
contentPane.add(resultx1);
resultx2 = new JLabel("");
resultx2.setBounds(250, 63, 78, 14);
contentPane.add(resultx2);
setVisible(true);
}
public static void main(String[] args) {
new EquacaoDeSegundoGrau();
}
}
