导入用户类的存储工具代码

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Properties;

public class IOTools {

private static Properties po = new Properties();
static {
try {
FileInputStream fl = new FileInputStream("userinformation.properties");
po.load(fl);
fl.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

public static void OutPutMoney(User user) {
po.setProperty(user.getAccount(), user.store());
try {
FileOutputStream file = new FileOutputStream("userinformation.properties");
po.store(file, null);
file.close();
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}

public static void forwardMoney(User user, User user1) {
po.setProperty(user.getAccount(), user.store());
po.setProperty(user1.getAccount(), user1.store());
try {
FileOutputStream file = new FileOutputStream("userinformation.properties");
po.store(file, null);
file.close();
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}

public static void changePWD(User user) {

po.setProperty(user.getAccount(), user.store());
try {
FileOutputStream file = new FileOutputStream("userinformation.properties");
po.store(file, null);
file.close();
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
System.out.println("没有找到文件");
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}

}