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java Programming Glossary: aload_1

Fastest way to iterate in Java

http://stackoverflow.com/questions/1006395/fastest-way-to-iterate-in-java

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 8 iload_2.. iconst_0 6 istore_3 7 iload_3 8 iload_2 9 if_icmpge 31 12 aload_1 13 iload_3 14 aaload 15 astore 4 17 getstatic #2 Field java..

Java enum and additional class files

http://stackoverflow.com/questions/1834632/java-enum-and-additional-class-files

0 getstatic #2 Field EnumUser 1. SwitchMap EnumClass I 3 aload_1 4 invokevirtual #3 Method EnumClass.ordinal I 7 iaload 8 lookupswitch..

Comparing strings with == which are declared final in Java

http://stackoverflow.com/questions/19418427/comparing-strings-with-which-are-declared-final-in-java

invokespecial #5 Method java lang StringBuilder. init V 13 aload_1 14 invokevirtual #6 Method java lang StringBuilder.append Ljava..

length and length() in java

http://stackoverflow.com/questions/1965500/length-and-length-in-java

#3 Field java lang System.out Ljava io PrintStream 23 aload_1 24 arraylength 25 invokevirtual #4 Method java io PrintStream.println..

Why is an anonymous inner class containing nothing generated from this code?

http://stackoverflow.com/questions/2883181/why-is-an-anonymous-inner-class-containing-nothing-generated-from-this-code

PrivateInnerClass OuterClass OuterClass 1 Code 0 aload_0 1 aload_1 2 invokespecial #1 Method init LOuterClass V 5 return As you..

Which is more effective: if (null == variable) or if (variable == null)?

http://stackoverflow.com/questions/3021195/which-is-more-effective-if-null-variable-or-if-variable-null

different for the two cases. For boolean b variable null 3 aload_1 load variable 4 ifnonnull 11 check if it's null 7 iconst_1.. For boolean b null variable 3 aconst_null push null 4 aload_1 load variable 5 if_acmpne 12 check if equal 8 iconst_1 push..

Is this valid Java?

http://stackoverflow.com/questions/3110014/is-this-valid-java

#10 Field java lang System.out Ljava io PrintStream 38 aload_1 39 invokevirtual #11 Method java io PrintStream.println Ljava..

What code does the compiler generate for autoboxing?

http://stackoverflow.com/questions/408661/what-code-does-the-compiler-generate-for-autoboxing

lang Integer.valueOf I Ljava lang Integer 4 astore_1 5 aload_1 6 invokevirtual #3 Method java lang Integer.intValue I 9 istore_2..

String concatenation: concat() vs + operator

http://stackoverflow.com/questions/47605/string-concatenation-concat-vs-operator

invokespecial #3 Method java lang StringBuilder. init V 7 aload_1 8 invokevirtual #4 Method java lang StringBuilder.append Ljava.. StringBuilder.toString Ljava lang String 18 astore_1 19 aload_1 20 areturn So a b is the equivalent of a new StringBuilder .append..

for loop optimization

http://stackoverflow.com/questions/6093537/for-loop-optimization

init V 7 astore_1 8 iconst_0 9 istore_2 10 iload_2 11 aload_1 12 invokeinterface #4 1 InterfaceMethod java util List.size.. #3 Method java util ArrayList. init V 7 astore_1 8 aload_1 9 invokeinterface #4 1 InterfaceMethod java util List.size I..