tostring

Lua table 转 字符串

前提是你 提交于 2019-12-15 00:01:02
function ToString (tab, cnt) cnt = cnt or 1 local tp = type(tab) if tp ~= 'table' then return tostring(tab) end if cnt >= 4 then -- 这里的4代表嵌套层数,比如:{--1{--2{--3{}}}} return tostring(tab) end local function getSpace(count) local temp = {} for i = 1, count * 4 do table.insert(temp, ' ') end return table.concat(temp) end local tabStr = {} table.insert(tabStr, '{\n') local spaceStr = getSpace(cnt) for k, v in pairs(tab) do table.insert(tabStr, spaceStr) table.insert(tabStr, '[') table.insert(tabStr, ToString(k, cnt + 1)) table.insert(tabStr, '] = ') table.insert(tabStr, '[') table.insert(tabStr,

C# ToString(“C”) converting the decimal to currency value pound instead of dollar

大兔子大兔子 提交于 2019-12-14 03:28:24
问题 I am converting a double value to currency string format and it gets converted string with pound symbol currency. Is it culture dependent? 回答1: If you always want to use a a specific locale, which may be desirable if your server target is hosted in a different timezone, etc... ToString() can be supplied with a CultureInfo argument. How to convert string to double with proper cultureinfo If you want to tailor it to the user's locale, You might be able to examine the request values: Get

toString : when does it return ClassName@HexValue, String Value associated with it

陌路散爱 提交于 2019-12-14 03:28:23
问题 As per definition toString() returns "Returns a string representation of the object as: getClass().getName() + '@' + Integer.toHexString(hashCode()) But sometimes I could see even if it is not Overriden in our class, it returns the String associated with it. I mean Object.toString() returns some String but not " ClassName@HexCode ". When does this happen. Please let me know whats the reason behind this ?? 回答1: It's only possible if a class extends another class with overriden (or inherited

slf4j-log4j converts objects to string before passing to Asynchronus logger

▼魔方 西西 提交于 2019-12-14 01:17:05
问题 I'm looking to log the request and response to a web service. I'm using slf4j with underlying log4j2 implementation. My logger statement looks like the below. LOGGER.info("{}",new CustomObject(request,response,param1,param2)); I have implemented the toString methods in all the necessary objects and in the CustomObject class to log all attributes of that object. I see that the toString method of the CustomObject is called before it passes the log message to the Asynch logger. Is there anyway

How to convert a number to a string in Smalltalk (visual works)

自作多情 提交于 2019-12-13 16:26:27
问题 I am having difficulty finding information on how to get a string representation of a number in Cincom Smalltalk. How is this performed in this language? Specifically I'm composing a string representation of an object, similar to the toString function in Java. 回答1: The printString method is meant to return a string to allow a programmer to interpret the number. If you used 3.14d in your example (a Double), you would see the 'd' character in the printString. This is fine for developers but if

UUID.randomUUID().toString() 的作用

旧巷老猫 提交于 2019-12-13 11:28:50
public static String createNewId(){ return UUID.randomUUID().toString() ; } UUID.randomUUID().toString()是javaJDK提供的一个自动生成主键的方法。UUID(Universally Unique Identifier)全局唯一标识符,是指在一台机器上生成的数字,它保证对在同一时空中的所有机器都是唯一的,是由一个十六位的数字组成,表现出来的 形式。由以下几部分的组合:当前日期和时间(UUID的第一个部分与时间有关,如果你在生成一个UUID之后,过几秒又生成一个UUID,则第一个部分不 同,其余相同),时钟序列,全局唯一的IEEE机器识别号(如果有网卡,从网卡获得,没有网卡以其他方式获得),UUID的唯一缺陷在于生成的结果串会比较长。 来源: CSDN 作者: thunder-1 链接: https://blog.csdn.net/u011582840/article/details/103521691

object to toString method in java with subclasses

假装没事ソ 提交于 2019-12-13 08:59:53
问题 Yo! I have a task with subclasses, where I gotta use the printible version of output, and I added the method toString(), however it seems that the method doesn't really apply to some part of the code.I post all three classes for this task: Class 1 public class Prostokat { int szerokosc; int wysokosc; public Punkt origin; public Prostokat () { origin = new Punkt(0,0); szerokosc = 0; wysokosc = 0; } public Prostokat (Punkt p) { origin = p; } public Prostokat (Punkt p, int a){ origin = p;

How to remove the last separator in toString()

旧街凉风 提交于 2019-12-13 08:57:47
问题 I am combining two matrices: matrixA = 719.0 501.0 -75.0 501.0 508.0 -62.0 -75.0 -62.0 10.0 matrixB = -19.0 -19.0 -19.0 -19.0 -19.0 -19.0 -19.0 -19.0 -19.0 -19.0 -20.0 -20.0 -20.0 -20.0 -20.0 -20.0 -20.0 -20.0 -20.0 -20.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 matrixA#matrixB- combines using # and the row is separated using , and element separated using | My toString code is: public String toString() { String separator = "|"; StringBuffer result = new StringBuffer(); for (int k = 0; k < keys

Java中的Object类

人走茶凉 提交于 2019-12-13 07:51:11
Object类是比较特殊的类,它是所有类的父类,是Java类层中的最高层类。在Object类中主要包括clone()、finnalize()、equals()、toString()等方法。由于所有的类都是Object类的子类,所以任何类都可以重写Object类中的方法,下面将介绍几个重要方法: 1、getClass()方法 该方法会返回对象执行时的Class实例,然后使用该实例调用getName()方法可以 取得类的名称,语法如下: getClass().getName() 2、toString()方法 该方法的功能是将一个对象返回为字符串形式,它会返回一个String实例,通过以下示例来说明该方法: public class ObjectInstance { public String toString() {//重写toString()方法 return "在"+getClass().getName()+"类中重写toString()方法"; } public static void main(String args[]) { System.out.println(new ObjectInstance()); } } /*输出结果如下: 在test.ObjectInstance类中重写toString()方法 */ 3、equals()方法

Why won't WPF databindings show text when ToString() has a collaborating object?

感情迁移 提交于 2019-12-12 20:14:14
问题 In a simple form, I bind to a number of different objects -- some go in listboxes; some in textblocks. A couple of these objects have collaborating objects upon which the ToString() method calls when doing its work -- typically a formatter of some kind. When I step through the code I see that when the databinding is being set up, ToString() is called the collaborating object is not null and returns the expected result when inspected in the debugger, the objects return the expected result from