salesforce equality

Today, in development, two integer values are judged equal,Integer a = 3;Duixiang Duixiang = new Duixiang ();Duixiang = Dao.getduixiang ();Integer B = Duixiang.getb ();System.out.print (A = = B);System.out.print (A.equals (b));When A==b is found, false,a.equals (b) is true.I found out because my B's value is the value of an object taken out of the data. The IDs of A and B are not the same, resulting in a a==b of false.The conclusion is that an integer is an object, and if it is equal, it cannot

1. Margin is negativemargin-bottom:-3000px; padding-bottom:3000px; a positive and negative mate parent element Overflow:hidden; #content {Overflow:hidden;}. left{width:200px; margin-bottom:-3000px; padding-bottom:3000px; background: #cad5eb; float:left;}. right{width:400px; margin-bottom:-3000px; padding-bottom:3000px; background: #f0f3f9; float:right;}. center{margin:0 410px 0 210px; Background: #ffe6b8; height:600px;} decision height that's on the last 2, Min-height automatic support large he

PHP strncmp () function compares the first 2 characters of two strings for equality, PHPSTRNCMP This example describes how PHP strncmp () function compares the first 2 characters of a two string. Share to everyone for your reference, as follows: The strncmp () function in PHP is used to compare two strings (case-sensitive) to determine whether the first n characters of the two strings are equal. The strncmp () function is defined as follows: STRNCMP

, and the memory addresses are equal, exactly equalstring1.equals (string2) is true, only values are equalIf you compare the size of a string using: Str1.compareto (string str2)compares two strings in a dictionary order. The comparison is based on the individual characters in the stringUnicode Value. PressDictionary ordercompares the sequence of characters represented by this string object with the sequence of characters represented by the argument string. If this string object is in the diction

(source, namekey) = =NULL?"": Getclassvalue (source, Namekey). toString (); String Tarvalue= Getclassvalue (target, namekey) = =NULL?"": Getclassvalue (target, Namekey). toString (); if(!srcvalue.equals (Tarvalue)) {RV=false; Break; } } } returnRV; } /** * based on field name * @param obj * @param fieldName * @return*/ Public Staticobject Getclassvalue (Object obj, String fieldName) {if(obj = =NULL) { return NULL; } Try{Class Beanclass=Obj.get

Learning: http://www.cnblogs.com/dolphin0520/p/3780005.html#3163302After discovering that there is such a thing, of course, will not pay attention to what the automatic unpacking and boxing, only know the use of the line. But it's worth noting here that the automatic valueof implementation of an integer is scoped: When you create an integer object by using the ValueOf method, if the value is between [-128,127], a reference to the object that already exists in Integercache.cache is retur

How does JavaScript compare two arrays?How does JS compare two arrays with exactly the same elements?JavaScript can not directly use = = or = = = To determine whether two arrays are equal, whether equal or congruent, the following two lines of JS code will return falseTo determine whether the two arrays in JS are the same, you need to convert the array to a string before comparing it. The following two lines of code will return trueJS to compare two arrays have the same element, that is, two arr

same, the last two lines of code is equivalent to int b = A; When defining C, found that there is no field 4, then re-open the address of the field 4, let reference c point to field 4. String (If a string is strings s = "abc"; it is placed in the stack, if a string is used to create the object in the way string s = new String ("abc"); it's in the heap, and if it's a simple "abc", the input string constant is placed on the static segement/stack/string dominant), when executing = There is also a

Equality and comparisonJavaScript has two ways of determining whether two values are equal.equals operatorThe equals operator consists of two equals: = = JavaScript is a weakly typed language, which means that the equals operator enforces type conversions to compare two values. "" = = "0"//False0 = ""//True0 = "0"//TrueFalse = = "false"//Falsefalse = = "0"//Truefalse = = undefined//Falsefalse = = NULL//FalseNULL = = undefined//True"\t\r\n" = 0//True T

Tags:addtab$2 differences variables Single quotes == string type shel #!/bin/sh #测试各种字符串比较操作. #shell中对变量的值添加单引号, the difference between a nice quote and a non-additive: it is irrelevant to the type, that is, instead of adding quotation marks to the string type, #单引号不对相关量进行替换, such as not interpreting the $ symbol as a variable reference, substituting the value of the corresponding variable, the double quotation marks will be substituted # Author:tenfyguo a= "$" b= "$" echo "input original valu

We can use the username & password flow that's part of the oau2support. Hi all, I have arrived the solution to my problem. actually, I was examining the sample given in the Link

How to Judge-null js in JS How to judge-undefined JS how to judge-string type of number The following is an incorrect method: var exp = undefined;if (exp = = undefined){Alert ("undefined");} When exp is null, it also gets the same result as

Content Highlights:One. the strict equality operator "= = =" First calculates the value of its operand, then compares the two values, and the comparison process does not have any type conversions:1. If two value types are different, they are not

Launch Eclipse and click Help > Install New software.... Click Add.... In the Add Repository Dialog, set the Name to "force.com IDE" and the "Http://media". Developerforce.com/force-ide/eclipse42 "and

DOS command: Java-classpath st-4.0.7.jar;force-wsc-41.0.0.jar com.sforce.ws.tools.wsdlc "wsdllujing" "Path to Makefile"Example: Java-classpath st-4.0.7.jar;force-wsc-41.0.0.jar com.sforce.ws.tools.wsdlc C:\Users\Administetor\Desktop\ Wsdl.xml

Project, you often need to use the file upload and download, The upload and download feature is actually an insert and query operation on the Document object. This presentation is a simple file upload and download, in theory the ID should be stored

Sometimes we need to read and write XML, the common XML operations are mainly streams and Dom way.One. Streams WayThe streams commonly used classes are two Xmlstreamreader and Xmlstreamwriter.Xmlstreamreader: The reading of this reading mode is read

Rerender: Purpose: Partial refresh The value of this attribute is the component ID, which can be one or more IDs. Multiple IDs are separated by commas. Rendered: Purpose: You can control whether a widget is displayed on a page. The value of this

1. Map GD = schema. getglobaldescribe (); The key of map is the object API name. For example, "Account" You can: Gd. containskey ("account") to determine if there is any field in an object.   2. Map GD = schema. getglobaldescribe ();

optional features region: allow reports: Data of this object, which can be used for reports allow activities: enables this object to associate tasks with calendar objects. track field history: the platform can