GitSharp/Non Trivial Java To CSharp Conversions

From eqqon

Revision as of 15:23, 22 August 2009 (view source) Henon (Talk | contribs) m (→Unsigned right shift operator (>>>)) ← Older edit		Revision as of 15:24, 22 August 2009 (view source) Henon (Talk | contribs) m (→Octal literals (i.e. 0001)) Newer edit →
Line 26:		Line 26:
	Java:		Java:
-	{{code|int i = 0100644;}}	+	{{code|<nowiki>int i = 0100644;</nowiki>}}
	C#		C#
-	{{code|int i = 33188;}}	+	{{code|<nowiki>int i = 33188;</nowiki>}}
	===  synchronized===		===  synchronized===

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Revision as of 15:24, 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 1 Unsigned right shift operator (>>>) 2 string.Substring 3 Octal literals (i.e. 0001) 4 synchronized 5 Streams and Buffers

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)

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

C#:

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());