0
I am concluding a code in java but I came across the error above and I am not able to solve. When I check the checkbox the fields are formatted, when I uncheck I get the exception above. Can anyone tell me where I’m going wrong:
I’ll leave the classes below.
frame class
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.text.NumberFormat;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class SalarioFrame extends JFrame {
private JPanel painelTopo;
private JPanel painelCentro;
private JPanel painelFundo;
private JLabel lblSalarioBruto;
private JTextField txtSalarioBruto;
private JButton btnCalcular;
private JCheckBox chkFormatar;
private JLabel lblBaseInss;
private JLabel lblDescInss;
private JLabel lblBaseIrpf;
private JLabel lblDescIrpf;
private JTextField txtBaseInss;
private JTextField txtDescInss;
private JTextField txtBaseIrpf;
private JTextField txtDescIrpf;
private JLabel lblSalarioLiq;
private JTextField txtSalarioLiq;
public SalarioFrame() {
iniciarElementos();
configurarFrame();
criarEvento();
montarFrame();
}
/*
* Criando eventos
*/
private void criarEvento() {
btnCalcular.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
try {
if (txtSalarioBruto.getText().length() < 1) {
JOptionPane.showMessageDialog(null, "Por favor preencher o campo Salário Bruto.");
return;
}
} catch (NullPointerException ex) {
JOptionPane.showMessageDialog(null, "Por favor preencher o campo Salário Bruto.");
return;
}
double salarioBruto = 0.0;
try {
salarioBruto = Double.parseDouble(txtSalarioBruto.getText());
} catch (NumberFormatException ex) {
JOptionPane.showMessageDialog(null, "Por favor preencher o campo Salário Bruto com Número.");
return;
}
double[] valoresCalculados = SalarioClasse.ValorCalculo(salarioBruto);
txtBaseInss.setText(String.valueOf(valoresCalculados[0]));
txtDescInss.setText(String.valueOf(valoresCalculados[1]));
txtBaseIrpf.setText(String.valueOf(valoresCalculados[2]));
txtDescIrpf.setText(String.valueOf(valoresCalculados[3]));
txtSalarioLiq.setText(String.valueOf(valoresCalculados[4]));
painelCentro.revalidate();
}
});
chkFormatar.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
try {
if (!(Double.parseDouble(txtSalarioLiq.getText()) > 0.0)) {
JOptionPane.showMessageDialog(null,"Antes de formatar, por favor informar um Salário Bruto e clicar no botão [Calcular]");
return;
}
} catch (NullPointerException ex) {
JOptionPane.showMessageDialog(null,"Antes de formatar, por favor informar um Salário Bruto e clicar no botão [Calcular]");
return;
}
String salarioBruto = "", salarioLiquido = "", descontoInss = "", descontoIrpf = "", baseInss = "",
baseIrpf = "";
if (chkFormatar.isSelected()) {
NumberFormat formatoMoeda = NumberFormat.getCurrencyInstance();
salarioBruto = formatoMoeda.format(Double.parseDouble(txtSalarioBruto.getText()));
salarioLiquido = formatoMoeda.format(Double.parseDouble(txtSalarioLiq.getText()));
descontoInss = formatoMoeda.format(Double.parseDouble(txtDescInss.getText()));
descontoIrpf = formatoMoeda.format(Double.parseDouble(txtDescIrpf.getText()));
baseInss = formatoMoeda.format(Double.parseDouble(txtBaseInss.getText()));
baseIrpf = formatoMoeda.format(Double.parseDouble(txtBaseIrpf.getText()));
txtSalarioBruto.setText(salarioBruto);
txtSalarioLiq.setText(salarioLiquido);
txtDescInss.setText(descontoInss);
txtDescIrpf.setText(descontoIrpf);
txtBaseInss.setText(baseInss);
txtBaseIrpf.setText(baseIrpf);
} else {
salarioBruto = txtSalarioBruto.getText();
salarioLiquido = txtSalarioLiq.getText();
descontoInss = txtDescInss.getText();
descontoIrpf = txtDescIrpf.getText();
baseInss = txtBaseInss.getText();
baseIrpf = txtBaseIrpf.getText();
txtSalarioBruto.setText(salarioBruto);
txtSalarioLiq.setText(salarioLiquido);
txtDescInss.setText(descontoInss);
txtDescIrpf.setText(descontoIrpf);
txtBaseInss.setText(baseInss);
txtBaseIrpf.setText(baseIrpf);
}
painelCentro.revalidate();
}
});
}
/*
* Montando Frame
*/
private void montarFrame() {
painelTopo.add(lblSalarioBruto);
painelTopo.add(txtSalarioBruto);
painelTopo.add(btnCalcular);
painelTopo.add(chkFormatar);
painelCentro.add(lblBaseInss);
painelCentro.add(txtBaseInss);
painelCentro.add(lblDescInss);
painelCentro.add(txtDescInss);
painelCentro.add(lblBaseIrpf);
painelCentro.add(txtBaseIrpf);
painelCentro.add(lblDescIrpf);
painelCentro.add(txtDescIrpf);
painelFundo.add(lblSalarioLiq);
painelFundo.add(txtSalarioLiq);
}
/**
* Iniciar Elementos
*/
private void iniciarElementos() {
painelTopo = new JPanel(new FlowLayout());
lblSalarioBruto = new JLabel("Salário Bruto:");
txtSalarioBruto = new JTextField(10);
btnCalcular = new JButton("Calcular");
chkFormatar = new JCheckBox("Formatar");
painelCentro = new JPanel(new GridLayout(4, 1));
painelCentro = new JPanel(new GridLayout(4, 1));
lblBaseInss = new JLabel("Base INSS");
txtBaseInss = new JTextField();
txtBaseInss.setEnabled(false);
lblDescInss = new JLabel("Desconto INSS");
txtDescInss = new JTextField(10);
txtDescInss.setEnabled(false);
lblBaseIrpf = new JLabel("Base IRPF");
txtBaseIrpf = new JTextField(10);
txtBaseIrpf.setEnabled(false);
lblDescIrpf = new JLabel("Desconto IRPF");
txtDescIrpf = new JTextField(10);
txtDescIrpf.setEnabled(false);
painelFundo = new JPanel(new FlowLayout());
lblSalarioLiq = new JLabel("Salário Liquido:");
txtSalarioLiq = new JTextField(10);
txtSalarioLiq.setEnabled(false);
}
/*
* Configurando Frame
*/
private void configurarFrame() {
this.setTitle("Calculador de salário");
this.setSize(400, 180);
this.setLocationRelativeTo(null);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setResizable(false);
this.setLayout(new BorderLayout(5, 5));
this.add(painelTopo, BorderLayout.PAGE_START);
this.add(painelCentro, BorderLayout.CENTER);
this.add(painelFundo, BorderLayout.PAGE_END);
}
}
salario class
public class SalarioClasse {
public static double[] ValorCalculo(double salarioBruto) {
double[] valorCalculo = new double[5];
valorCalculo[0] = salarioBruto;
//calculo INSS
if(salarioBruto <= 1659.38)
valorCalculo[1] = salarioBruto * 0.8;
if(salarioBruto >= 1659.39 && salarioBruto <= 2765.66)
valorCalculo[1] = salarioBruto * 0.9;
if(salarioBruto >= 2765.67 && salarioBruto <= 5531.31)
valorCalculo[1] = salarioBruto * 0.11;
if(valorCalculo[1] > 608.45)
valorCalculo[1] = 608.45;
//salario liquido
valorCalculo[2] = salarioBruto - valorCalculo[1];
//calculo IRPF
if(valorCalculo[2] <= 1903.98)
valorCalculo[3] = 0.0;
if(valorCalculo[2] >= 1903.99 && valorCalculo[2] <= 2826.65)
valorCalculo[3] = ((valorCalculo[2] * 7.5) / 100) - 142.80;
if(valorCalculo[2] >= 2826.66 && valorCalculo[2] <= 3751.05)
valorCalculo[3] = ((valorCalculo[2] * 15) / 100) - 354.80;
if(valorCalculo[2] >= 3751.06 && valorCalculo[2] <= 4664.68)
valorCalculo[3] = ((valorCalculo[2] * 22.5) / 100) - 636.13;
if(valorCalculo[2] > 4664.68)
valorCalculo[3] = ((valorCalculo[2] * 27.5) / 100) - 869.36;
valorCalculo[4] = salarioBruto - valorCalculo[1] - valorCalculo[3];
return valorCalculo;
}
}
main class
public class SalarioMain {
public static void main(String[] args) {
new SalarioFrame().setVisible(true);
}
}
Do you really need to deselect the field? Or do you want to skip when you deselect?
– user28595
That one
catch (NullPointerException ex)wasn’t meant to beNumberFormatException?– Victor Stafusa
@Victorstafusa think not, I tested here, this cache avoids validate if the field is empty.
– user28595
The problem is easy to solve, but the author lacks to better inform how the program should work in this case.
– user28595
In case I need to deselect. When I deselect I want to take the currency format, but when I deselect to deselect it generates the exception.
– Josano
@Josano for this, you need to save all the values of the fields before formatting. You’re replacing everything, then you don’t even return to the old values.
– user28595
Humm would it be the case to create the variables outside to store the value and reuse afterwards? I have little experience with java and I was kind of northbound when trying to solve.
– Josano
@Josano is a solution too.
– user28595