java运行一直是找不到符号

求大佬帮我看看哪里错了呀，一直显示找不到符号
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.util.Arrays;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextArea;

public class main{
public static void main(String[] args){
    int[] a={9,8,7,2,3,4,1,0,6,5};
    Arrays.sort(a);
    for(int i=0;i<a.length;i++){
        System.out.print(a[i]+"");
    }
}

}

public class DrawMoney extends JFrame implements ActionListener{
String countname;
JButton jb1, jb2, jb3; //按钮
JLabel jlb1, jlb2, jlb3; //标签
JTextArea jta1,jta2;

public DrawMoney(String countname) {
    this.countname = countname;

    // TODO Auto-generated constructor stub
    jb1 = new JButton("确定");
    jb2 = new JButton("重置");
    //设置按钮监听
    jb1.addActionListener(this);
    jb2.addActionListener(this);


    jlb1 = new JLabel("请输入取出金额：");  //添加标签

    //创建文本框
     jta1 = new JTextArea();
     jta2 = new JTextArea();


   //设置布局
    this.setTitle("取钱");
    this.setLayout(null);
    this.setSize(300, 300); 

    //存入标签和文本框
    jlb1.setBounds(5, 20, 200, 20);
    jta1.setBounds(20, 50, 250, 50);
    jta1.setFont(new   java.awt.Font("Dialog",   0,   15));

    //确定和重置按钮
    jb1.setBounds(60, 120, 62, 28);
    jb2.setBounds(160, 120, 62, 28);

    //显示结果文本框
    //jlb1.setBounds(5, 20, 200, 20);
    jta2.setBounds(20, 160, 300, 50);
    jta2.setFont(new   java.awt.Font("Dialog",   1,   15));
    //jta2.setText("您的余额为:\n ");

   this.add(jlb1);
   this.add(jta1);
   this.add(jb1);
   this.add(jb2);
   this.add(jta2);

   this.setLocationRelativeTo(null);//在屏幕中间显示(居中显示)  
   this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);  //设置仅关闭当前窗口

   this.setVisible(true);  //设置可见
   this.setResizable(false);    //设置不可拉伸大小

}

//清空账号和密码框
    private void clear() 
    {
        // TODO Auto-generated method stub
        jta1.setText("");    //设置为空
        jta2.setText("");  

    }

@Override
public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
    if (e.getActionCommand()=="确定")
    {

        try {
            drawmoney();   //将存入金额传入判断是否合法
        } catch (IOException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }
    }
    else if (e.getActionCommand()=="重置")
    {
        clear();
    }

}


private void drawmoney() throws IOException {
    // TODO Auto-generated method stub
    if (jta1.getText().isEmpty())
    {
        JOptionPane.showMessageDialog(null, "金额为空，请重新输入！","消息提示",JOptionPane.WARNING_MESSAGE);
    }
    else if(new Check().checkmoney(jta1.getText()))
    {
        String nowmoney = new UserMessage().drawmoney(countname,-Integer.parseInt(jta1.getText()));
        if (!nowmoney.equals("负数"))
        {
            jta2.setText("您的余额为:\n "+nowmoney);
            jta1.setText("");
        }
        else 
        {
            JOptionPane.showMessageDialog(null, "余额不足请重新输入:","消息提示",JOptionPane.WARNING_MESSAGE);
            clear();
        }
    }
    else 
    {
        JOptionPane.showMessageDialog(null, "存入金额不合法!","消息提示",JOptionPane.WARNING_MESSAGE);
    }

}

}

Check和UserMessage两个类找不到，没创建或者不在一个包内