Out and ref difference notes in C # in the pass parameter

//out parameters need to be assigned before the parameter is passed, ref is not required.
Both out and ref parameters can change values
1 Static voidMain (string[] args)2         {3             intI =Ten;4             //int J = ten;5             //int I;6             intJ;7             //int[] K=new int[5]{1,2,3,4,5};8             int[] k =New int[5];9             //int[] L = new int[5]{1,2,3,4,5};Ten             int[] L =New int[5]; One  ATestClass1 TC =NewTestClass1 (); -Tc.testclass (refI); -Tc.testclass1 ( outJ); the              -Tc.testclass2 ( outk); -TC.TESTCLASS3 (refl); -  +Console.WriteLine ("Out I:"+I); -Console.WriteLine ("ref J:"+J); +  AConsole.WriteLine ("Out k[0]:"+ k[0]); atConsole.WriteLine ("ref l[0]:"+ l[0]); - Console.read (); -         } -          Public  voidTestClass (ref inti) -         { -i = -; in         } -          Public voidTestClass1 ( out inti) to         { +i = -; -         } the          Public voidTestClass2 ( out int[] k) *         { $k=New int[5];Panax Notoginsengk[0] = -; -         } the          Public voidTESTCLASS3 (ref int[] l) +         { AL =New int[5]; thel[0] = -; +         } -  $  $}

Out and ref difference notes in C # in the pass parameter