¡@
java Programming Glossary: astore_1Fastest way to iterate in Java http://stackoverflow.com/questions/1006395/fastest-way-to-iterate-in-java public static void main java.lang.String Code 0 aload_0 1 astore_1 2 aload_1 3 arraylength 4 istore_2 5 iconst_0 6 istore_3 7 iload_3..
Is String Literal Pool a collection of references to the String Object, Or a collection of Objects http://stackoverflow.com/questions/11700320/is-string-literal-pool-a-collection-of-references-to-the-string-object-or-a-co same #2 constant pointing to abc string ldc #2 String abc astore_1 one ldc #2 String abc astore_2 two Output For each example I.. constant pool Same as above. Byte code ldc #2 String abc astore_1 one new #3 class java lang String dup ldc #2 String abc invokespecial.. Asciz abc const #45 Asciz abc Byte code ldc #2 String abc astore_1 one ldc #3 String abc iconst_1 invokevirtual #4 Method String.substring..
Java OutOfMemoryError strange behaviour http://stackoverflow.com/questions/13531004/java-outofmemoryerror-strange-behaviour 13 iconst_1 14 if_icmplt 5 17 iload_0 18 newarray long 20 astore_1 21 return and without static void test int Code 0 iload_0 1.. static void test int Code 0 iload_0 1 newarray long 3 astore_1 4 iload_0 5 newarray long 7 astore_1 8 return No explicit null.. 1 newarray long 3 astore_1 4 iload_0 5 newarray long 7 astore_1 8 return No explicit null ing out in either case but note that..
Comparing strings with == which are declared final in Java http://stackoverflow.com/questions/19418427/comparing-strings-with-which-are-declared-final-in-java to the following byte code Code 0 ldc #2 String str 2 astore_1 3 ldc #3 String ing 5 astore_2 6 new #4 class java lang StringBuilder..
http://stackoverflow.com/questions/3110014/is-this-valid-java #7 Method f Ljava util List Ljava lang String 15 astore_1 16 iconst_1 17 anewarray #4 class java lang Integer 20 dup 21..
What code does the compiler generate for autoboxing? http://stackoverflow.com/questions/408661/what-code-does-the-compiler-generate-for-autoboxing #2 Method java lang Integer.valueOf I Ljava lang Integer 4 astore_1 5 aload_1 6 invokevirtual #3 Method java lang Integer.intValue..
String concatenation: concat() vs + operator http://stackoverflow.com/questions/47605/string-concatenation-concat-vs-operator java lang StringBuilder.toString Ljava lang String 18 astore_1 19 aload_1 20 areturn So a b is the equivalent of a new StringBuilder..
http://stackoverflow.com/questions/6093537/for-loop-optimization 4 invokespecial #3 Method java util ArrayList. init V 7 astore_1 8 iconst_0 9 istore_2 10 iload_2 11 aload_1 12 invokeinterface.. 4 invokespecial #3 Method java util ArrayList. init V 7 astore_1 8 aload_1 9 invokeinterface #4 1 InterfaceMethod java util List.size..
|