程序语言解释

Question

import com.ump.api.paygate.Mer2Ump;

import java.text.SimpleDateFormat;
import java.util.*;

public class TestMer2Ump {

    //准备一些测试必需的参数值
    private static Date date = new Date();
    private static SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddhhmm");
    private  static String orderid = sdf.format(date);
    private static SimpleDateFormat sdf1 = new SimpleDateFormat("yyyyMMdd");
    private static String merdate = sdf1.format(date);
    private static String mer_id = "60000100";
    private static String charset = "UTF-8";
    private static String sign_type="RSA";
    private static String res_format = "HTML";