print elements of arraylist java

defining a method, you do not know that you can use a variable parameter when you define several parameters - * 2. Format: the * Modifier return value type method name (data type ... Variable name)Bayi * the * 3. Precautions: the * This mutable parameter is essentially an array - * If there are multiple parameters, the variable parameter must be placed in the last - */ the Public Static voidMain (string[] args) { the the int[] arr = {11, 22, 33, 44}; the //

Often we want to delete some elements in the collection. Some may write like this.public void operate (List list) {for (Iterator it = List.iterator (); It.hasnext ();) {String str = (string) it.next ();if (Str.equals ("Chengang")) {List.remove (str);}}}This writing will report the following exception as soon as it runs:Exception in thread "main" java.util.ConcurrentModificationExceptionAt Java.util.abstractlist$itr.checkforcomodification (abstractlist

-1) t) { return true; } } } return false; }}2, with a map implementation, similar to the principle of bucket sequencing, first turn the data into positive numbers, and the use of long (otherwise error, such as 2 and 2 divided by 3 equals 0, but 4 is greater than 3), while the bucket (t) = t + 1 (t = = 0 of the case to be discharged) Public classSolution { Public BooleanContainsnearbyalmostduplicate (int[] Nums,intKintt) {if(K ){ return false

{System.out.println ("Static code block BaseClass"); } {System.out.println ("Building code block BaseClass"); } PublicBaseClass () {System.out.println ("Construction Method BaseClass"); }}classSonclassextendsBaseClass {Static{System.out.println ("Static code block Sonclass"); } {System.out.println ("Building code block Sonclass"); } PublicSonclass () {System.out.println ("Construction Method Sonclass"); }} Public classEXERCISE04 { Public Static voidMain (string[] args) {Sonclass son1=New

http://www.verejava.com/?id=16992656053526/* Title: Delete Scores array index value idea of index position: 1. Create a temporary array Temparray 2 that is temporarily 1 smaller than scores. Copy the data in front of index to Temparray in front of 3. Copy the array after index to Temparray after 4. Assigns a Temparray address pointer reference to scores 5. Print output Scores*/import Java.util.scanner;public class arraydelete{public static void Main (