GitSharp/Non Trivial Java To CSharp Conversions

From eqqon

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=== string.Substring===  
=== string.Substring===  
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Java:
+
Java
{{code|someString.substring(int, int)}}
{{code|someString.substring(int, int)}}
 +
C#<br>
An extension method that resembles the Java version is available in GitSharp.Util:
An extension method that resembles the Java version is available in GitSharp.Util:
-
 
-
C#:
 
{{code|someString.Slice(int, int)}}
{{code|someString.Slice(int, int)}}

Revision as of 15:31, 22 August 2009

This page lists some commonly required analogues between Java and C# that are not so trivial. This collection has been compiled while porting GitSharp.

Contents

Unsigned right shift operator (>>>)

Java:

int a, b; int i = (a + b) >>> 5;

C#:

int a, b; int i = (int)(((uint)(a + b)) >> 5)

string.Substring

Java

someString.substring(int, int)

C#
An extension method that resembles the Java version is available in GitSharp.Util:

someString.Slice(int, int)

Octal literals (i.e. 0001)

C# does not support octal literals (starting with a leading zero in java) and interprets them wrongly as decimal. You need to replace them by the corresponding decimal or hex literals.

Java:

int i = 0100644;

C#

int i = 33188;

synchronized

Java:

synchronized void a_method() { ...
}

C#

[MethodImpl(MethodImplOptions.Synchronized)] public void a_method() { ...
}

When inlined, synchronized(this) is of course equivalent to lock(this)

Streams and Buffers

Java

new ByteArrayOutputStream();

C#

new BinaryWriter(new MemoryStream());

Integer.parseInt( string s, int radix)

This parses a string s using the base radix and converts it to decimal.

Java

Integer.parseInt( "FF", 16)

C#

NB.BaseToDecimal("FF", 16)

Note, NB is a class in the namespace GitSharp.Util.

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