ruby class "can't convert Class into String

sponsored links

java convert string to hexadecimal encoding and convert hexadecimal encoded string

package test; public class StringTest { public static String toHexString(String s) { String str = ""; for (int i = 0; i < s.length(); i++) { int ch = (int) s.charAt(i); String s4 = Integer.toHexString(ch); str = str + s4; } return "0x" + str;//0x表

Sql in the convert function to convert timestamp to string

In sql server, the date-type field in the database, the default is similar to the "year - month - day hour: minutes: seconds" format exists, but if the words directly into a string like this format will be "07 25 2007 4:58 PM ", c

convert the json string javaScript StringBuilder.form2Json.form

Js libraries do not rely on / * StringBuilder * / function StringBuilder(){ this._element_ = new Array(); } StringBuilder.prototype.append = function(item) { this._element_.push(item); } StringBuilder.prototype.toString = function() { return this._element

To convert the date string format to match the date of the database type

/** * From a Web page or external input ( Generally not enter seconds ), Need to set the date into a date type database */ public final static java.sql.Timestamp strToDateTime(String dateStr) throws Exception { int len = dateStr.length(); String format =

sql syntax, how to convert a numeric string

1 problem: Insert database, oracle error, said insert "invalid character" Carefully examined what was discovered that the statement is to use the merger, when the number one table into another table field type of varchar type of field. 2 so ...

Convert an expression string and regexp

/ ** * Var str = ", 1,2,3,4,5," * Var a = ", 3,"; * Str.replace (new RegExp (a ),","));, 1,2,4,5, * /

Ruby numeric type is converted to string

Ruby script written often encounter some minor problems when, for example colleagues met today a: convert Fixnum to String error Numeric type conversion is actually not, for the Ruby language of this type of weak data, the type of conversion seems to

php convert string character encoding

1, the GBK encoding strings into UTF-8 encoded string view plaincopy to clipboardprint? <? Php header ("content-Type: text / html; charset = Utf-8"); echo mb_convert_encoding (" You are my friend "," UTF-8 "," GBK

How to convert a string to date

How to convert dates to string - MS-SQL Server / Applications 2010-10-11 16:57 SQL code - String to date (in line with the premise of the standard date format): cast (col as datetime) - Or convert (datetime, col) - Date transfer string: With the char

Note 2 to upgrade to Ruby 1.9

Ruby 1.8 String support only ASCII code, in Ruby 1.9 increase in the encoding (Encoding) property, to support Unicode. New features help Ruby better support internationalization, but since the string object is used too widely, the new interface resulting

JavaScript String Functions Guinness

Own JS function 1.Asc (x), Chr (x): convert characters, character code 2. Filter: Search string array of a specific string Format: v = filter (x, s [, include [, compare]]) Examples: Dim x ()={" kjwang "," wangkj "," peter ")

Ruby to learn a

Scratch the last few days, start to make better preparations for a look at Ruby's a few books. Such as the "Programming Ruby" "Ruby for Rails" "The ruby way" and so few books. Want to learn from the experience and re ...

Ruby simplified method of the trick ... ... (plus a method name the initials of the trick)

NS man just like him better when I read the code above: wrote night_stalker One way to see short trick I say it is not difficult to achieve, to imitate the behavior code reckoned that one out. But as simple as I started things were wrong, depressing ...

java string encoding conversion

java string encoding conversion, whether the program localization is international, will involve the conversion of character encoding issues. Especially in web applications often need to deal with Chinese characters, when a string is needed, encoding ...

js string numeric conversion

Debugging code today is faced with a js problem, at the beginning found it strange because the code is basically identical to the structure, but the running result is a difference. To the two lines of code are as follows: spanAValue = document.getEle ...

String class and the StringBuffer Class (change)

*** String class and the StringBuffer Class -------------------------- The contents of the String class object is initialized it can not be changed once they are StringBuffer class is used to package the contents of the string can be changed can be other

Java, byte hexadecimal string with 16 interchangeable

Java, said the occupation of byte binary 8-bit, and we know that each of 16 hexadecimal characters need to use 4-bit binary bits to represent the (23 + 22 + 21 + 20 = 15), so we can convert each byte two corresponding 16 hexadecimal characters, that ...

The use of Javascript String

/ / JS own function concat / / Will be two or more characters of text together, returning a new string. var a = "hello"; var b = ", world"; var c = a.concat (b); alert (c); / / c = "hello, world" / / indexOf / / Return the st

With a JavaScript string operation

With a JavaScript string operation While JavaScript has many useful, but processing the string is one of the most popular one. Let us in-depth analysis of the use of JavaScript string operation. In the JavaScript in, String is the object. String obje ...

Python string encode and decode

The role is to decode the other code string into a unicode encoding, such as str1.decode ('gb2312'), said it would convert gb2312 unicode encoded string encoding. The role is to encode unicode encoding into a string of other codes, such as str2.en

Introduction to Ruby V (class definition)

The above defines a class called Greeter, and a number of ways, including @ name is the class instance variables, all methods of the class are valid, # (@ name ) is a string in Ruby in the insert in the other string way, that is, # (), the braces put ...

ruby cookbook - Enumerable mixin - good example of Ruby's duck typing

Similarly, File and String both include the Enumerable mixin, so in a lot of cases you can read from an object without caring what type it is. This is a good example of Ruby's duck typing. Just remember that, unlike a string, you can't iterat ...

VC in the hexadecimal string is converted to decimal

In the process, we sometimes need to convert a hexadecimal string to decimal. For example: char * ptr = "0x11"; int n = 0; / / We want n is equal to 0x11, or 17 We usually C, to convert a string to a plastic figures, often using the following me

javascript string handling functions summary

While JavaScript has many useful, but processing the string is one of the most popular one. Let us in-depth analysis of the use of JavaScript string operation. In the JavaScript in, String is the object. String objects are not stored as character arr ...

JavaScript string functions Daquan

Reprinted: http://blog.csdn.net/cyai/archive/2009/05/25/4213956.aspx JS own function concat Two or more characters of text together, returning a new string. indexOf Return string a substring appears at the first index (from left to right search). If ...

(Transfer) String & & StringBuffer differences and usage

Non-variable objects, once created, can not be altered, you can create a variable object, after being changed. String object non-mutable objects; StringBuffer objects are mutable. In order to obtain better performance need to be careful to choose the actu

java read binary file written in hexadecimal string

package test; import java.io.DataInputStream; import java.io.File; import java.io.FileInputStream; import java.io.IOException; public class ReadBinaryTest ( public void testDataInputStream (String filepath) throws IOException ( File file = new File ( ...

js the type conversion and reference types (Boolean / Number / String)

1, type conversion 1. Converted into a string ECMAScript for Boolean values, numbers, and strings of the original value of interesting objects is that they are false, which means that they actually have the attributes and methods. Such as: Js code var sCo

ASP.Net Word convert PDF format to achieve

1: an essential tool Install the necessary tools to MS VS.Net2003, MS Office2003, Adobe Acrobat 7.0 Professional, postscript.exe, gs811w32.exe MS VS.Net2003 the installation does not explain MS Office2003 installation does not explain Adobe Acrobat 7.0 Pr

Convert PDF to Word ASP.Net format to achieve

1: an essential tool Install the necessary tools to MS VS.Net2003, MS Office2003, Adobe Acrobat 7.0 Professional, postscript.exe, gs811w32.exe MS VS.Net2003 the installation does not explain MS Office2003 installation does not explain Adobe Acrobat 7

Understanding Ruby Symbol, Part 1

http://www.ibm.com/developerworks/cn/opensource/os-cn-rubysbl/ What Symbol Ruby is a powerful object-oriented scripting language (Ruby version used in this article 1.8.6), Symbol said in Ruby, "name", such as the string name, identifier name. Cr

String data type conversion and other

In Java, strings and other data to provide a conversion between the types, especially with the basic data types and wrapper classes convert between, will be frequently used. 1, will be converted to a string of other data types will be converted to a

Freemarker_ built-in function _ figures. String. Date Format

A, Sequence of the built-in functions 1. Sequence? First returns the first value in sequence. 2. Sequence? Last returns the last value sequence. 3. Sequence? Reverse the sequence reversal of the existing order, that is reverse sort 4. Sequence? Size

Levenshtein string similarity algorithm

Edit distance algorithm was first proposed by Russian scientists Levenshtein, it is also known as Levenshtein Distance. A string can be by adding a character, delete a character, replace a character string by another, assumptions, we convert from a s

Classic String Object into several forms of [transfer]

Classic String Object into several forms of [transfer] Java project in the actual development and applications, often need to use the String object into this basic function. This method will be used to convert a summary. Commonly used method Object #

js commonly used string handling functions

Function: split () Function: Use a specified separator to split a string stored in the array example: theString = "jpg | bmp | gif | ico | png"; arr = theString.split ("|"); / / Arr is a character value contains "jpg",

JS string conversion figures

I turn, look at their own convenience 1. Transfer function: js provides parseInt () and parseFloat () two conversion functions. Former is converted to an integer value, which is the value converted to floating point. Only call these methods on String

Javascript: date string (DateStr) and the date of the object (Date) the conversion between

Directly into the topic: Create a Date object: var objDate = new Date ([arguments list]); Form of the following 5 parameters: view plaincopy to clipboardprint? new Date ("month dd, yyyy hh: mm: ss"); new Date ("month dd, yyyy"); n

java.toString (), (String), valueOf

Java project in the actual development and applications, often need to use the String object into this basic function. Commonly used method Object # toString (), (String) to convert the object, String.valueOf (Object) and so on. The following analysis of

[Ruby study notes] 4. Standard types

Ruby's standard types including digital (Numeric), string (String), range (Range) and regular expressions (Regexp). It seems to us and are familiar with the concept of a standard type of a bit different, better range of say how become a regular s

[Java] double and String conversion methods between the [transfer]

8 Basic data types have corresponding wrapper class 8 (Wrapper) correspond, respectively: Character, Byte, Short, Integer, Long, Float, Double, Boolean. Features: 1. Provides the valueOf (String) to convert from a string and toString () converted to

(Transfer) JavaScript string functions Daquan

JS own function concat Two or more combinations of text characters and returns a new string. var a = "hello"; var b = ", world"; var c = a.concat (b); alert (c); / / C = "hello, world" indexOf Returns a substring in the

js string manipulation functions

concat () - two or more combinations of text characters and returns a new string. indexOf () - returns a substring in the string appears at the first index. If no match, returns -1. charAt () - Returns the character position. lastIndexOf () - Returns

String similarity algorithm (Levenshtein Distance algorithm)

Programming Software Engineering II Summary Title: a string by adding a character, delete a character, replace a character string by another, assumptions, we convert from a string A string of B, in front of three kinds of operations The minimum numbe

organize a common java class (string handling class)

Keywords: java string commonly used class of first order today, some of his usual string under common categories: Java code 1.import java.io. *; 2.import java.text.DecimalFormat; 3.import org.apache.oro.text.regex.PatternCompiler; 4.import org.apache

Blob.Clob.String object related operations

Large objects BLOB is binary data. Such as: to save the bitmap. Use CHAR to CLOB data. Such as: Save the XML document. 1. Read Blob, Clob object Connection con = null; try { Class.forName("oracle.jdbc.OracleDriver"); con = DriverManager.getConnection

Js Daquan string manipulation functions

Js Daquan string manipulation functions Js Daquan string manipulation functions Js Daquan string manipulation functions / * ****************************************** Expansion of string functions ****************************************** * / / * =======

Convert JSON to an object (deserialize) method, EXT.decode () and EXT.encode () method (Zhuantie)

The basis of the original】 【articles: Title IV, Ext there are two very important ways, one is decode; one encode. In describing this example, I assumed you already know what is Json data, and then here in the study about it: JSON (JavaScript Object Notati

The interception of a string

Transfer http://zangweiren.iteye.com/blog/216005 public static void main (String [] args) throws Exception { System.out.println (substring ("I DOMINIC love JAVA", 10)); } public static String substring (String orignal, int count) throws Uns

SQL string functions used

First, the character conversion functions 1, ASCII () Returns a character expression the leftmost characters of the ASCII code value. In the ASCII () function in pure digital string''can not include them, but with the other characters must be
Recent
Recent Entries
Tag Cloud
Random Entries