Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package sumarfracciones; import org.apache.commons.math3.fraction.Fraction; /** * * @author Manuel Manzano */ public class main extends javax.swing.JFrame { /** * Creates new form main */ public main() { initComponents(); } /** * This method is called from within the constructor to initialize the form. * WARNING: Do NOT modify this code. The content of this method is always * regenerated by the Form Editor. */ @SuppressWarnings("unchecked") // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents private void initComponents() { jButton1 = new javax.swing.JButton(); jTextFieldnum1 = new javax.swing.JTextField(); jTextFielddeno1 = new javax.swing.JTextField(); jLabel1 = new javax.swing.JLabel(); jTextFieldnum2 = new javax.swing.JTextField(); jLabel2 = new javax.swing.JLabel(); jLabel3 = new javax.swing.JLabel(); jTextFielddeno2 = new javax.swing.JTextField(); jLabel4 = new javax.swing.JLabel(); jTextFieldresultado = new javax.swing.JTextField(); Terminos = new javax.swing.JLabel(); jLabel7 = new javax.swing.JLabel(); jLabel5 = new javax.swing.JLabel(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jButton1.setText("Sumar"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jTextFieldnum1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jTextFieldnum1ActionPerformed(evt); } }); jLabel1.setText("_________"); jLabel2.setText("+"); jLabel3.setText("_________"); jLabel4.setText("="); Terminos.setText("Terminos"); jLabel7.setText("Resultado"); jLabel5.setText("Sumar Fracciones:"); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addContainerGap().addGroup(layout .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addGroup(layout .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) .addComponent(Terminos).addGroup(layout.createSequentialGroup() .addGroup(layout.createParallelGroup( javax.swing.GroupLayout.Alignment.LEADING, false) .addComponent(jTextFielddeno1).addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 55, Short.MAX_VALUE)) .addGap(24, 24, 24).addComponent(jLabel2))) .addComponent(jTextFieldnum1, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(29, 29, 29) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jLabel4)) .addComponent(jTextFieldnum2, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jTextFielddeno2, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jButton1).addComponent(jLabel7) .addComponent(jTextFieldresultado, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE))) .addComponent(jLabel5)).addContainerGap(38, Short.MAX_VALUE))); layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGroup( javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup().addContainerGap().addComponent(jLabel5) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 9, Short.MAX_VALUE) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(Terminos).addComponent(jLabel7)) .addGap(18, 18, 18) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jTextFieldnum2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jTextFieldnum1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addPreferredGap( javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 14, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel2) .addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 14, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jLabel4).addComponent(jTextFieldresultado, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(6, 6, 6) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jTextFielddeno1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jTextFielddeno2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) .addComponent(jButton1).addGap(17, 17, 17))); pack(); }// </editor-fold>//GEN-END:initComponents private void jTextFieldnum1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jTextFieldnum1ActionPerformed // TODO add your handling code here: }//GEN-LAST:event_jTextFieldnum1ActionPerformed private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed int num1, num2, deno1, deno2; num1 = Integer.valueOf(jTextFieldnum1.getText()); num2 = Integer.valueOf(jTextFieldnum2.getText()); deno1 = Integer.valueOf(jTextFielddeno1.getText()); deno2 = Integer.valueOf(jTextFielddeno2.getText()); Fraction terminouno = new Fraction(num1, deno1); Fraction terminodos = new Fraction(num2, deno2); terminodos = terminouno.add(terminodos); jTextFieldresultado.setText(terminodos.toString()); }//GEN-LAST:event_jButton1ActionPerformed /** * @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(main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(main.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 main().setVisible(true); } }); } // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JLabel Terminos; private javax.swing.JButton jButton1; private javax.swing.JLabel jLabel1; private javax.swing.JLabel jLabel2; private javax.swing.JLabel jLabel3; private javax.swing.JLabel jLabel4; private javax.swing.JLabel jLabel5; private javax.swing.JLabel jLabel7; private javax.swing.JTextField jTextFielddeno1; private javax.swing.JTextField jTextFielddeno2; private javax.swing.JTextField jTextFieldnum1; private javax.swing.JTextField jTextFieldnum2; private javax.swing.JTextField jTextFieldresultado; // End of variables declaration//GEN-END:variables }