/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package flow;

import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.*;

/**
 *
 * @author michiaki
 */
public class MethodSampleTest {

    public MethodSampleTest() {
    }

    @BeforeClass
    public static void setUpClass() throws Exception {
    }

    @AfterClass
    public static void tearDownClass() throws Exception {
    }

    @Before
    public void setUp() {
    }

    @After
    public void tearDown() {
    }

    /**
     * Test of twice method, of class MethodSample.
     */
    @Test
    public void twice() {
        System.out.println("twice");
        int value = 0;
        MethodSample instance = new MethodSample();
        int expResult = 0;
        int result = instance.twice(value);
        assertEquals(expResult, result);
        assertEquals("3を2倍すると", 6, instance.twice(3));
        // TODO review the generated test code and remove the default call to fail.
        fail("The test case is a prototype.");
    }

    /**
     * Test of main method, of class MethodSample.
     */
    @Test
    public void main() {
        System.out.println("main");
        String[] args = null;
        MethodSample.main(args);
        // TODO review the generated test code and remove the default call to fail.
        fail("The test case is a prototype.");
    }

/*
 * MethodSample.java
 *
 * Created on 2008/03/20, 22:42
 */

package flow;

/**
 *
 * @author  seijun
 */
public class MethodSample extends javax.swing.JFrame {
    
    /** Creates new form MethodSample */
    public MethodSample() {
        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.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        txtNumber = new javax.swing.JTextField();
        btnCalc = new javax.swing.JButton();
        jScrollPane1 = new javax.swing.JScrollPane();
        taOutput = new javax.swing.JTextArea();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        btnCalc.setText("計算");
        btnCalc.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnCalcActionPerformed(evt);
            }
        });

        taOutput.setColumns(20);
        taOutput.setRows(5);
        jScrollPane1.setViewportView(taOutput);

        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.TRAILING, false)
                    .addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
                        .addComponent(txtNumber, javax.swing.GroupLayout.PREFERRED_SIZE, 284, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(btnCalc, javax.swing.GroupLayout.DEFAULT_SIZE, 85, Short.MAX_VALUE)))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(txtNumber, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(btnCalc))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 253, Short.MAX_VALUE)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>                        

    int twice(int value) {
        int result = value * 2;
        //return 0;
        return result;
    }
    private void btnCalcActionPerformed(java.awt.event.ActionEvent evt) {                                        
        // TODO add your handling code here:
        String str = txtNumber.getText();
        int number = Integer.parseInt(str);
        
        int bai = twice(number);
        taOutput.append(number + "を2倍したら" + bai + "\n");
    }                                       
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new MethodSample().setVisible(true);
            }
        });
    }
    
    // Variables declaration - do not modify                     
    private javax.swing.JButton btnCalc;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextArea taOutput;
    private javax.swing.JTextField txtNumber;
    // End of variables declaration                   
    
}