bank.java

一个模拟银行系统的JAVA代码

/*
 * Bank.java
 *
 * Created on 2004年9月19日, 下午1:55
 */

/**
 *
 * @author  litertiger
 */
public class Bank extends javax.swing.JFrame {

    
    /** Creates new form Bank */
    public Bank() {
        for(int i=0;i<accounts.length;i++)
            accounts[i]=100000;
        start();
        
        initComponents();
    }
    public void transfer(int from,int into,int amount)
    {
        if((accounts[from]>=amount)&&(from!=into))
        {
            int newAccountFrom=accounts[from]-amount;
            int newAmountTo=accounts[into]+amount;
            wasteSomeTime();
            accounts[from]=newAccountFrom;
            accounts[into]=newAmountTo;
        }
    }
    private void start()
    {
        stop();
        for(int i=0;i<accounts.length;i++)
            customer[i]=new Customer(i,this);
    }
    private void stop()
    {
        for(int i=0;i<accounts.length;i++)
            if(customer[i]!=null)
                customer[i].halt();
    }
    private void wasteSomeTime()
    {
        try{
            Thread.sleep(WASTE_TIME);
            
        }
        catch(InterruptedException e)
        {
            
    }
    }
        private void showAccounts()
        {
            
        }
    /** 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.
     */
    private void initComponents() {//GEN-BEGIN:initComponents
        jTextArea1 = new javax.swing.JTextArea();
        jLabel1 = new javax.swing.JLabel();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jButton3 = new javax.swing.JButton();

        getContentPane().setLayout(null);

        addWindowListener(new java.awt.event.WindowAdapter() {
            public void windowClosing(java.awt.event.WindowEvent evt) {
                exitForm(evt);
            }
        });

        jTextArea1.setEditable(false);
        jTextArea1.setWrapStyleWord(true);
        getContentPane().add(jTextArea1);
        jTextArea1.setBounds(20, 30, 430, 250);

        jLabel1.setText("Transfers complete:");
        getContentPane().add(jLabel1);
        jLabel1.setBounds(20, 0, 340, 30);

        jButton1.setText("show account");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        getContentPane().add(jButton1);
        jButton1.setBounds(10, 300, 110, 25);

        jButton2.setText("restart");
        getContentPane().add(jButton2);
        jButton2.setBounds(200, 300, 70, 25);

        jButton3.setText("stop");
        getContentPane().add(jButton3);
        jButton3.setBounds(330, 300, 70, 25);

        pack();
    }//GEN-END:initComponents

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
int sum=0;
for(int i=0;i<accounts.length;i++)
{
    sum+=accounts[i];
    jTextArea1.append("\nAccount"+i+":$"+accounts[i]);
    // TODO 将在此处增加您的处理代码：
}
jTextArea1.append("\n total Amount :$"+sum+"\n");
jTextArea1.append("\n Total Transfer: $"+counter+"\n");
    }//GEN-LAST:event_jButton1ActionPerformed
    
    /** Exit the Application */
    private void exitForm(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_exitForm
        System.exit(0);
    }//GEN-LAST:event_exitForm
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        new Bank().show();
    }
    
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JButton jButton3;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JTextArea jTextArea1;
    // 变量声明结束//GEN-END:variables
     protected final static int NUM_ACCOUNTS=8;
    protected final static int WASTE_TIME=1;
    private int accounts[]=new int[NUM_ACCOUNTS];
    private Customer customer[]=new Customer[NUM_ACCOUNTS];
    private int counter=0;
}