胖卡你还在吃 upangka

Gist for first time

package org.caucoder.leetcode;

import jdk.nashorn.internal.ir.Flags;

import java.util.ArrayList;
import java.util.Arrays;

// 删除entry,根据key 满足什么条件
map.entrySet().removeIf(e->e.getKey boolean condition);
// 删除entry,根据value 是否为null
map.values().removeIf(Objects::isNull);

重构之前的代码

public void setScorePeriod(String value){
  set(SCORE_PERIOD, value);
}
public String getScorePeriod(){
  return get(SCORE_PERIOD);
}

代码调用

将 “【1，2，3】” 转化为List [1,2,3]

public static <T> T json2Object(String json, TypeReference<T> reference, boolean failOnUnknownProperties) {
        if (StringUtils.isBlank(json)) {
            return null;
        }
        if (failOnUnknownProperties) {
            MAPPER.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 }

	package org.caucoder.controller;

	import org.caucoder.dao.StudentDataUtil;
	import org.caucoder.pojo.Student;
	import sun.misc.Request;

	import javax.servlet.RequestDispatcher;
	import javax.servlet.ServletException;
	import javax.servlet.annotation.WebServlet;
	import javax.servlet.http.HttpServlet;

	public class CardUpgradeDao extends ShopBaseService {
	// 重构之前得代码
	public void insert(Integer userId,MemberCardRecord oldCard, MemberCardRecord newCard) {
	CardUpgradeRecord re = db().newRecord(CARD_UPGRADE);
	String operation = "Admin option";
	re.setUserId(userId);
	re.setOldCardId(oldCard.getId());
	re.setNewCardId(newCard.getId());
	re.setOldGrade(oldCard.getGrade());
	re.setNewGrade(newCard.getGrade());

	package org.caucoder.mylist;

	public class Entity {
	private String fname;
	private String lname;

	public Entity(String fname, String lname) {
	this.fname = fname;
	this.lname = lname;
	}

	package org.caucoder.mylist;

	public class Entity {
	private String fname;
	private String lname;

	public Entity(String fname, String lname) {
	this.fname = fname;
	this.lname = lname;
	}

	package org.caucoder.mylist;

	import java.util.*;
	import java.util.stream.Collectors;

	/**
	* list 转set并操作
	*/
	public class GetSpecificField {
	public static void main(String[] args) {

	package org.caucoder.mylist;


	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.List;
	import java.util.Set;
	import java.util.stream.Collectors;

	/**