15: COLLECTIONS AND MAPS in Java

Generator QR Code JIS X 0510 in Java 15: COLLECTIONS AND MAPS
CHAPTER 15: COLLECTIONS AND MAPS
Drawing QR Code In Java
Using Barcode generation for Java Control to generate, create QR Code 2d barcode image in Java applications.
Select the one correct answer (a) (b) (c) (d) (e) (f) 1520 It will print [A, B, C, D, E] It will print [A, C, E] It will print [B, D, E] It will print [A, B, D] It will print [B, C, E] It will throw a NoSuchElementException
Generating Bar Code In Java
Using Barcode generator for Java Control to generate, create bar code image in Java applications.
Which sequence of digits will the following program print
Scanning Barcode In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
import javautilArrayList; import javautilLinkedList; import javautilList; public class Lists { public static void main(String[] args) { List<String> list = new ArrayList<String>(); listadd("1"); listadd("2"); listadd(1, "3"); List<String> list2 = new LinkedList<String>(list); listaddAll(list2); list2 = listsubList(2, 5); list2clear(); Systemoutprintln(list); } }
QR Code 2d Barcode Creation In Visual C#.NET
Using Barcode creator for .NET Control to generate, create QR image in .NET framework applications.
Select the one correct answer (a) [1, 3, 2] (b) [1, 3, 3, 2] (c) [1, 3, 2, 1, 3, 2] (d) [3, 1, 2] (e) [3, 1, 1, 2] (f) None of the above 1521 Which of these methods from the Collection interface will return the value true if the collection was modified during the operation Select the two correct answers (a) contains() (b) add() (c) containsAll() (d) retainAll() (e) clear()
QR Code Drawer In .NET
Using Barcode generator for ASP.NET Control to generate, create QR Code image in ASP.NET applications.
157: QUEUES
Quick Response Code Creator In VS .NET
Using Barcode generation for VS .NET Control to generate, create Denso QR Bar Code image in VS .NET applications.
Which statements, when inserted independently at (1), will guarantee that the following program will print [1, 9]
Generating QR Code In Visual Basic .NET
Using Barcode drawer for VS .NET Control to generate, create QR Code 2d barcode image in Visual Studio .NET applications.
import javautil*; public class RightOne { public static void main(String[] args) { // (1) INSERT DECLARATION HERE collectionadd(1); collectionadd(9); collectionadd(1); Systemoutprintln(collection); } }
UPC-A Supplement 5 Encoder In Java
Using Barcode drawer for Java Control to generate, create GTIN - 12 image in Java applications.
Select the four correct answers (a) Collection<Integer> collection = new HashSet<Integer>(); (b) Set<Integer> collection = new HashSet<Integer>(); (c) HashSet<Integer> collection = new LinkedHashSet<Integer>(); (d) Set<Integer> collection = new LinkedHashSet<Integer>(); (e) Collection<Integer> collection = new TreeSet<Integer>(); (f) NavigableSet<Integer> collection = new TreeSet<Integer>(); 1523 What will the program print when it is compiled and run
Bar Code Drawer In Java
Using Barcode creator for Java Control to generate, create bar code image in Java applications.
import import import import static javalangSystemout; javautilCollections; javautilNavigableSet; javautilTreeSet;
Encode EAN / UCC - 14 In Java
Using Barcode generation for Java Control to generate, create UCC-128 image in Java applications.
public class RQ400_300 { public static void main(String[] args) { NavigableSet<String> strSetA = new TreeSet<String>(); CollectionsaddAll(strSetA, "set", "shell", "soap"); outprint(strSetAceiling("shell") + " "); outprint(strSetAfloor("shell") + " "); outprint(strSetAhigher("shell") + " "); outprintln(strSetAlower("shell")); } }
Making Data Matrix ECC200 In Java
Using Barcode creator for Java Control to generate, create ECC200 image in Java applications.
Select the one correct answer (a) shell soap shell set (b) soap set shell shell (c) shell shell soap set (d) set shell shell soap 1524 Which statement, when inserted independently at (1), will result in program output that does not include the word shell
Barcode Encoder In Java
Using Barcode creator for Java Control to generate, create barcode image in Java applications.
import import import import static javalangSystemout; javautilCollections; javautilNavigableSet; javautilTreeSet;
UPC-E Generation In Java
Using Barcode encoder for Java Control to generate, create UPC-E Supplement 2 image in Java applications.
CHAPTER 15: COLLECTIONS AND MAPS public class RQ400_400 { public static void main(String[] args) { NavigableSet<String> strSetA = new TreeSet<String>(); CollectionsaddAll(strSetA, "set", "shell", "soap", "swan"); // (1) INSERT STATEMENT HERE } }
Bar Code Reader In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
Select the two correct answers (a) outprintln(strSetAheadSet("soap", true)); (b) outprintln(strSetAheadSet("soap", false)); (c) outprintln(strSetAtailSet("soap", true)); (d) outprintln(strSetAtailSet("soap", false)); (e) outprintln(strSetAsubSet("set", false, "soap", true)); (f) outprintln(strSetAsubSet("set", true, "soap", false)); 1525 Which collection types, when inserted at (1), will result in a generic method that will compile without errors
Create Barcode In .NET Framework
Using Barcode drawer for .NET framework Control to generate, create barcode image in .NET applications.
public static <T> T justDoIt(_____/* (1) INSERT TYPE HERE */______<T> collection) { return collectionpoll(); }
Decoding UPCA In Visual Studio .NET
Using Barcode scanner for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications.
Select the three correct answers (a) NavigableSet (b) PriorityQueue (c) LinkedList (d) Queue (e) TreeSet (f) LinkedHashSet 1526 Which loop, when inserted independently at (1), will guarantee that the program will print sea|sells|she|shells|
Barcode Generation In VS .NET
Using Barcode creator for ASP.NET Control to generate, create barcode image in ASP.NET applications.
import static javalangSystemout; import javautilCollections; import javautilPriorityQueue; public class RQ400_500 { public static void main(String[] args) { PriorityQueue<String> strPQ = new PriorityQueue<String>(); CollectionsaddAll(strPQ, "shells", "she", "sells", "sea"); // (1) INSERT LOOP HERE outprintln(); } }
EAN / UCC - 13 Recognizer In Visual Studio .NET
Using Barcode scanner for .NET Control to read, scan read, scan image in .NET framework applications.
Select the one correct answer (a) for (String word : strPQ) {
Paint Code 39 Extended In VB.NET
Using Barcode drawer for VS .NET Control to generate, create Code 3 of 9 image in Visual Studio .NET applications.
outprint(word + "|"); }
Scanning Barcode In .NET Framework
Using Barcode decoder for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
158: MAPS
(b) for (String word : strPQ) {
outprint(strPQpeek() + "|"); }
(c) while (strPQpeek() != null) {
outprint(strPQpoll() + "|"); }
(d) for (String word : strPQ) {
outprint(strPQpoll() + "|"); }
158 Maps
A Map defines mappings from keys to values The <key, value> pair is called an entry A map does not allow duplicate keys, in other words, the keys are unique Each key maps to one value at the most, implementing what is called a single-valued map Thus, there is a many-to-one relation between keys and values For example, in a student-grade map, a grade (value) can be awarded to many students (keys), but each student has only one grade Both the keys and the values must be objects, with primitive values being wrapped in their respective primitive wrapper objects when they are put in a map A map is not a collection and the Map interface does not extend the Collection interface However, the mappings can be viewed as a collection in various ways: a key set, a value collection, or an entry set These collection views are the only means of traversing a map The Map interface specifies some optional methods Implementations should throw an UnsupportedOperationException if they do not support such an operation The implementations of maps from the javautil package support all the optional operations of the Map interface (see Table 152 and Figure 153)