Monday, 26 November 2012
c# for dummies: c sharp programming
c# for dummies: c sharp programming: String Concatenation string variables can be connected together to build larger strings via the C# + operator. As you may know, this tec...
c sharp programming
String Concatenation
string variables can be connected together to build larger strings via the C# + operator. As you may
know, this technique is formally termed string concatenation. Consider the following new helper
function:
static void StringConcatenation()
{
Console.WriteLine("=> String concatenation:");
string s1 = "Programming the ";
string s2 = "PsychoDrill (PTP)";
string s3 = s1 + s2;
Console.WriteLine(s3);
Console.WriteLine();
}
string variables can be connected together to build larger strings via the C# + operator. As you may
know, this technique is formally termed string concatenation. Consider the following new helper
function:
static void StringConcatenation()
{
Console.WriteLine("=> String concatenation:");
string s1 = "Programming the ";
string s2 = "PsychoDrill (PTP)";
string s3 = s1 + s2;
Console.WriteLine(s3);
Console.WriteLine();
}
c# for dummies: string manipulation
c# for dummies: string manipulation: Basic String Manipulation Working with the members of System.String is as you would expect. Simply declare a strin...
string manipulation
Basic String Manipulation
Working with the members of System.String is as you would expect. Simply declare a string variable
and make use of the provided functionality via the dot operator. Be aware that a few of the members of
System.String are static members and are, therefore, called at the class (rather than the object) level.
Assume you have created a new Console Application project named FunWithStrings. Author the
following method, which should be called from within Main():
static void BasicStringFunctionality()
{
Console.WriteLine("=> Basic String functionality:");
string firstName = "Freddy";
Console.WriteLine("Value of firstName: {0}", firstName);
Console.WriteLine("firstName has {0} characters.", firstName.Length);
Console.WriteLine("firstName in uppercase: {0}", firstName.ToUpper());
Console.WriteLine("firstName in lowercase: {0}", firstName.ToLower());
Console.WriteLine("firstName contains the letter y?: {0}",
firstName.Contains("y"));
Console.WriteLine("firstName after replace: {0}", firstName.Replace("dy", ""));
Console.WriteLine();
}
Not too much to say here, as this method simply invokes various members, such as ToUpper() and
Contains(), on a local string variable to yield various formats and transformations.
Working with the members of System.String is as you would expect. Simply declare a string variable
and make use of the provided functionality via the dot operator. Be aware that a few of the members of
System.String are static members and are, therefore, called at the class (rather than the object) level.
Assume you have created a new Console Application project named FunWithStrings. Author the
following method, which should be called from within Main():
static void BasicStringFunctionality()
{
Console.WriteLine("=> Basic String functionality:");
string firstName = "Freddy";
Console.WriteLine("Value of firstName: {0}", firstName);
Console.WriteLine("firstName has {0} characters.", firstName.Length);
Console.WriteLine("firstName in uppercase: {0}", firstName.ToUpper());
Console.WriteLine("firstName in lowercase: {0}", firstName.ToLower());
Console.WriteLine("firstName contains the letter y?: {0}",
firstName.Contains("y"));
Console.WriteLine("firstName after replace: {0}", firstName.Replace("dy", ""));
Console.WriteLine();
}
Not too much to say here, as this method simply invokes various members, such as ToUpper() and
Contains(), on a local string variable to yield various formats and transformations.
Tuesday, 13 November 2012
c# for dummies: c sharp programming
c# for dummies: c sharp programming: using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace StringManipulationPost { class Program ...
c sharp programming
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace StringManipulationPost
{
class Program
{
static void Main(string[] args)
{
string[] strings = { "started", "starting", "ended", "ending" };
// test every string to see if it starts with "st"
for ( int i = 0; i < strings.Length; i++ )
if (strings[ i ].StartsWith( "st" ) )
Console.WriteLine( "\"" + strings[ i ] + "\"" +
" starts with \"st\"" );
Console.WriteLine();
// test every string to see if it ends with "ed"
for ( int i = 0; i < strings.Length; i++ )
if ( strings[ i ].EndsWith( "ed" ) )
Console.WriteLine( "\"" + strings[ i ] + "\"" +
" ends with \"ed\"" );
Console.WriteLine();
//strings[ i ].StartsWith( "st" )
//strings[ i ].EndsWith( "ed" )
Console.ReadLine();
}
}
}
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace StringManipulationPost
{
class Program
{
static void Main(string[] args)
{
string[] strings = { "started", "starting", "ended", "ending" };
// test every string to see if it starts with "st"
for ( int i = 0; i < strings.Length; i++ )
if (strings[ i ].StartsWith( "st" ) )
Console.WriteLine( "\"" + strings[ i ] + "\"" +
" starts with \"st\"" );
Console.WriteLine();
// test every string to see if it ends with "ed"
for ( int i = 0; i < strings.Length; i++ )
if ( strings[ i ].EndsWith( "ed" ) )
Console.WriteLine( "\"" + strings[ i ] + "\"" +
" ends with \"ed\"" );
Console.WriteLine();
//strings[ i ].StartsWith( "st" )
//strings[ i ].EndsWith( "ed" )
Console.ReadLine();
}
}
}
c# for dummies: c sharp classes
c# for dummies: c sharp classes: using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace StringManipulationPost { class Program ...
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