HowieChih

1、String[] array = new String[2];

2、String[] array = {"1", "2"};

3、String[] array = new String[]{"1", "2"};

以上三种方式创建的数组，长度都是2，第二种和第三种已经设置了值。

HowieChih

Map<Long, List<UserEntity>> userListMap = userEntityList.stream().collect(Collectors.groupingBy(UserEntity::getOrganizationId));

HowieChih

long millisInDay = 24 * 60 * 60 * 1000;
long tomorrowMidnight = (endTimestamp / millisInDay + 1) * millisInDay;

HowieChih

// the user
public Class User {
    private String name;
}

// with containsKey
HashMap<Integer, User> map = new HashMap<>();

if (map.containsKey(100)) {
    User user = map.get(100);

HowieChih

Get-ChildItem "HKCU:\Software\Microsoft\Windows\CurrentVersion\Lxss" -Recurse |
ForEach-Object {
    $distro_name = ($_ | Get-ItemProperty -Name DistributionName).DistributionName
    $distro_dir =  ($_ | Get-ItemProperty -Name BasePath).BasePath
    
    $distro_dir = Switch ($PSVersionTable.PSEdition) {
      "Core" {
        $distro_dir -replace '^\\\\\?\\',''
      }
      "Desktop" {

HowieChih

public class ConditionExec {

    public static void main(String[] args) {
        ConditionExec exec = new ConditionExec();
        if (args.length == null) {
            exec.doAlpha();
        } else {
            exec.doBeta();
        }
        

HowieChih

import React from 'react';

class InfoForm extends React.Component {
    constructor(props) {
        super(props);
        this.state = {
            name: '',
            gender: 'female',
            languages: [],
            nation: ''

HowieChih

package com.foo;

import java.util.Calendar;
import java.util.Date;

public class CustomDateUtils {

    /**
     * 根据生日计算年龄
     * 

HowieChih

Problem

The default encoding is system code page in Internet Explorer of URL's query string. It will make some errors when server side receive the query string with encoding UTF-8.

Solution

Encoding the query string to UTF-8 with JavaScript window.encodeURIComponent(str) before request send.

Example

location.href = 'http://www.example.com/search?key=' + window.encodeURIComponent('文');

HowieChih

package com.ihouse.controller;

interface InterfaceA {
    Number getNumber();
}

interface InterfaceB {
    Integer getNumber();
}