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java Programming Glossary: iteratorJava: iterate through HashMap [duplicate] http://stackoverflow.com/questions/1066589/java-iterate-through-hashmap the entrySet like so public static void printMap Map mp Iterator it mp.entrySet .iterator while it.hasNext Map.Entry pairs Map.Entry..
Calling remove in foreach loop in Java http://stackoverflow.com/questions/1196586/calling-remove-in-foreach-loop-in-java a collection while iterating over it you should use an Iterator. For example List String names .... Iterator String i names.iterator.. should use an Iterator. For example List String names .... Iterator String i names.iterator while i.hasNext String s i.next must..
Which is more efficient, a for-each loop, or an iterator? http://stackoverflow.com/questions/2113216/which-is-more-efficient-a-for-each-loop-or-an-iterator or List Integer a new ArrayList Integer for Iterator iterator a.iterator iterator.hasNext Integer integer Integer.. ALOAD 1 INVOKEINTERFACE java util List.iterator Ljava util Iterator ASTORE 3 GOTO L2 L3 ALOAD 3 INVOKEINTERFACE java util Iterator.next.. ASTORE 3 GOTO L2 L3 ALOAD 3 INVOKEINTERFACE java util Iterator.next Ljava lang Object CHECKCAST java lang Integer ASTORE 2..
How to iterate an ArrayList inside a HashMap using JSTL? http://stackoverflow.com/questions/2117557/how-to-iterate-an-arraylist-inside-a-hashmap-using-jstl entry map.entrySet out.print Key entry.getKey values for Iterator Object iter entry.getValue .iterator iter.hasNext Object item..
Problem reading JPEG image using ImageIO.read(File file) http://stackoverflow.com/questions/2408613/problem-reading-jpeg-image-using-imageio-readfile-file f new File path imagefile.jpg Find a suitable ImageReader Iterator readers ImageIO.getImageReadersByFormatName JPEG ImageReader..
StringBuilder and StringBuffer in Java http://stackoverflow.com/questions/355089/stringbuilder-and-stringbuffer-in-java
Is there a way to access an iteration-counter in Java's for-each loop? http://stackoverflow.com/questions/477550/is-there-a-way-to-access-an-iteration-counter-in-javas-for-each-loop it is based on the Iterable interface i.e. it uses an Iterator to loop through the collection which may not be a collection..
http://stackoverflow.com/questions/5113016/getting-a-concurrentmodificationexception-thrown-when-removing-an-element-from-a this question I believe this is the purpose behind the Iterator.remove method to be able to remove an element from the collection.. element from the collection while iterating. For example Iterator String iter li.iterator while iter.hasNext if iter.next .equalsIgnoreCase..
How to convert an ArrayList containing Integers to primitive int array? http://stackoverflow.com/questions/718554/how-to-convert-an-arraylist-containing-integers-to-primitive-int-array List Integer integers int ret new int integers.size Iterator Integer iterator integers.iterator for int i 0 i ret.length..
Update JLabel every X seconds from ArrayList<List> - Java http://stackoverflow.com/questions/7943584/update-jlabel-every-x-seconds-from-arraylistlist-java null ActionListener listener new ActionListener private Iterator Word w words.iterator @Override public void actionPerformed.. null ActionListener listener new ActionListsner private Iterator Word it words.iterator @Override public void actionPerformed..
Why is Java's Iterator not an Iterable? http://stackoverflow.com/questions/839178/why-is-javas-iterator-not-an-iterable is Java's Iterator not an Iterable Why does the Iterator interface not extend.. is Java's Iterator not an Iterable Why does the Iterator interface not extend Iterable The iterator method could simply..
How does the Java for each loop work? http://stackoverflow.com/questions/85190/how-does-the-java-for-each-loop-work foreach syntactic sugar share improve this question for Iterator String i someList.iterator i.hasNext String item i.next System.out.println.. in some way you cannot use the for idiom since the actual Iterator is merely inferred. As was noted by Denis Bueno this code works..
how to sort Map values by key in Java http://stackoverflow.com/questions/922528/how-to-sort-map-values-by-key-in-java in same order as question . Right now I have the following Iterator it paramMap.entrySet .iterator while it.hasNext Map.Entry pairs..
Calling remove in foreach loop in Java http://stackoverflow.com/questions/1196586/calling-remove-in-foreach-loop-in-java names Do something while names.remove name java loops iterator foreach share improve this question To safely remove from.. For example List String names .... Iterator String i names.iterator while i.hasNext String s i.next must be called before you can..
how binding attribute in JSF works http://stackoverflow.com/questions/14911158/how-binding-attribute-in-jsf-works a custom component or perhaps in its simplest form just an iterator component ui repeat h dataTable etc . However sometimes you'd..
Which is more efficient, a for-each loop, or an iterator? http://stackoverflow.com/questions/2113216/which-is-more-efficient-a-for-each-loop-or-an-iterator is more efficient a for each loop or an iterator Which is the most efficient way to traverse a collection List.. or List Integer a new ArrayList Integer for Iterator iterator a.iterator iterator.hasNext Integer integer Integer iterator.next.. Integer a new ArrayList Integer for Iterator iterator a.iterator iterator.hasNext Integer integer Integer iterator.next integer.toString..
Is there a performance difference between a for loop and a for-each loop? http://stackoverflow.com/questions/256859/is-there-a-performance-difference-between-a-for-loop-and-a-for-each-loop of the clutter and the opportunity for error by hiding the iterator or index variable completely. The resulting idiom applies equally..
What are major differences between C# and Java? http://stackoverflow.com/questions/295224/what-are-major-differences-between-c-sharp-and-java have operator and conversion overloading Java doesn't have iterator blocks for simple implemetation of iterators Java doesn't have.. doesn't have iterator blocks for simple implemetation of iterators Java doesn't have anything like LINQ Partly due to not having..
Why is Java's Iterator not an Iterable? http://stackoverflow.com/questions/839178/why-is-javas-iterator-not-an-iterable Why does the Iterator interface not extend Iterable The iterator method could simply return this . Is it on purpose or just an.. would be convenient to be able to use a for each loop with iterators like this for Object o someContainer.listSomeObjects .... where.. .... where listSomeObjects returns an iterator. java iterator iterable share improve this question Because..
How does the Java for each loop work? http://stackoverflow.com/questions/85190/how-does-the-java-for-each-loop-work improve this question for Iterator String i someList.iterator i.hasNext String item i.next System.out.println item Note that.. you need to use i.remove in your loop or access the actual iterator in some way you cannot use the for idiom since the actual Iterator..
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