Java collection
What are differences between Enumeration, ArrayList, Hashtable and Collections andView Answers
October 18, 2010 at 6:11 PM
Hi,
Enumeration: It is a series of elements. It can be used to enumerate through the elements of a vector, keys or values of a hashtable. You can not remove elements from Enumeration.
ArrayList: It is re-sizable array implementation. Belongs to ââ?¬Ë?Listââ?¬â?¢ group in collection. It permits all elements, including null. It is not thread -safe.
Hashtable: It maps key to value. You can use non-null value for key or value. It is part of group Map in collection.
Collections: It implements Polymorphic algorithms which operate on collections.
Collection: It is the root interface in the collection hierarchy.
Thanks.
Related Tutorials/Questions & Answers:
Java collection
Java collection What are differences between Enumeration, ArrayList, Hashtable and Collections and Collection
Java collection What are differences between Enumeration, ArrayList, Hashtable and Collections and Collection
Advertisements
Collection in java
Collection in java What are the meaning of the letters E,T,K and V that come in the collection concept
Collection in java What are the meaning of the letters E,T,K and V that come in the collection concept
Java collection
Java collection What are differences between Enumeration, ArrayList, Hashtable and Collections
Java collection What are differences between Enumeration, ArrayList, Hashtable and Collections
Java garbage collection
Java garbage collection What is Garbage Collection and how to call it explicitly
Java garbage collection What is Garbage Collection and how to call it explicitly
Collection classes in java
is the reason using java collection classes saved/stored the data/content.I don't understand, what is the idea using java collection classes in project. Or the data is stored in both database and java collection classes
is the reason using java collection classes saved/stored the data/content.I don't understand, what is the idea using java collection classes in project. Or the data is stored in both database and java collection classes
Collection classes in java
is the reason using java collection classes saved/stored the data/content.I don't understand, what is the idea using java collection classes in project. Or the data is stored in both database and java collection classes
is the reason using java collection classes saved/stored the data/content.I don't understand, what is the idea using java collection classes in project. Or the data is stored in both database and java collection classes
collection
collection As we know array holds the similar kind of elements, then in collection how toArray() method will convert the collection having different objects as elements to an array in java
collection As we know array holds the similar kind of elements, then in collection how toArray() method will convert the collection having different objects as elements to an array in java
Filter collection in Java 8
Filter collection in Java 8 Hi, I have following collection..., Example of Filter collection in Java 8 You can use the following code in Java 8... the data not containing "Java". Thanks Hi, We have huge collection
Filter collection in Java 8 Hi, I have following collection..., Example of Filter collection in Java 8 You can use the following code in Java 8... the data not containing "Java". Thanks Hi, We have huge collection
garbage collection implementation dependent java
garbage collection implementation dependent java How a garbage collection works in Java
garbage collection implementation dependent java How a garbage collection works in Java
Java Collection API - Java Tutorials
Java Collection API Collection was added to Java with J2SE 1.2 release. Collection framework is provided in 'java.util.package'. All collections... implementations of the collection interfaces. Also, they are reusable data structures
Java Collection API Collection was added to Java with J2SE 1.2 release. Collection framework is provided in 'java.util.package'. All collections... implementations of the collection interfaces. Also, they are reusable data structures
Java collection -Hashtable
Java collection -Hashtable What is Hashtable in java collection? Java collection -Hashtable;- The hashtable is used to store value in the form of map key with value. import java.util.Hashtable; import
Java collection -Hashtable What is Hashtable in java collection? Java collection -Hashtable;- The hashtable is used to store value in the form of map key with value. import java.util.Hashtable; import
Java collection-LinkedList
Java collection-LinkedList How to use java collection-linked list ? Example: import java.util.Iterator; import java.util.LinkedList; import java.util.List; public class LinkedListExample{ public static void
Java collection-LinkedList How to use java collection-linked list ? Example: import java.util.Iterator; import java.util.LinkedList; import java.util.List; public class LinkedListExample{ public static void
Collection Framework - Java Beginners
Collection Framework Pls explain the disadvantages of using collection framework as it was written in this forum ? It must cast to correct type. ? Cannot do compile time checking. I couldnot get in detail as to what
Collection Framework Pls explain the disadvantages of using collection framework as it was written in this forum ? It must cast to correct type. ? Cannot do compile time checking. I couldnot get in detail as to what
Collection
Collection What is the exact difference between lagacy classes and collection classes? and Enumeration is possible on Collection classes
Collection What is the exact difference between lagacy classes and collection classes? and Enumeration is possible on Collection classes
How to convert Collection to Array in Java?
How to convert Collection to Array in Java? Hello, I have a collection object in data with data in it. How to convert Collection to Array in Java... to Array in Java. Here is the code for converting Collection to Array: String
How to convert Collection to Array in Java? Hello, I have a collection object in data with data in it. How to convert Collection to Array in Java... to Array in Java. Here is the code for converting Collection to Array: String
garbage collection - Java Beginners
of memory.It identifies the objects that are no longer used by a program. A Java object is subject to garbage collection when it becomes unreachable to the program..."algorithms.Instead of "destructor" in c++ , java supports garbage collector
of memory.It identifies the objects that are no longer used by a program. A Java object is subject to garbage collection when it becomes unreachable to the program..."algorithms.Instead of "destructor" in c++ , java supports garbage collector
Java collection Queue Example
Java collection Queue Example How can we use Queue in java collection? import java.util.LinkedList; import java.util.Queue; public... LinkedList(); queue.add("Java"); queue.add("DotNet
Java collection Queue Example How can we use Queue in java collection? import java.util.LinkedList; import java.util.Queue; public... LinkedList(); queue.add("Java"); queue.add("DotNet
Java Collection-TreeSet
Java Collection-TreeSet What is TreeSet in Java Collection? Example: import java.util.Iterator; import java.util.TreeSet; public class TreeSetExample{ public static void main(String [] args
Java Collection-TreeSet What is TreeSet in Java Collection? Example: import java.util.Iterator; import java.util.TreeSet; public class TreeSetExample{ public static void main(String [] args
Java collection LinkedHashSet
Java collection LinkedHashSet How can we use LinkedHashSet in java collection? import java.util.Iterator; import java.util.LinkedHashSet; import java.util.Set; public class LinkedHashSetExample{ public static
Java collection LinkedHashSet How can we use LinkedHashSet in java collection? import java.util.Iterator; import java.util.LinkedHashSet; import java.util.Set; public class LinkedHashSetExample{ public static
Java collection Stack example
Java collection Stack example How to use Stack class in java collection? The Stack class uses the First In Last Out(FILO) mechanism... :- -1 Description:- The above example demonstrates you the Stack class in java
Java collection Stack example How to use Stack class in java collection? The Stack class uses the First In Last Out(FILO) mechanism... :- -1 Description:- The above example demonstrates you the Stack class in java
Java collection HashSet
Java collection HashSet How can we use HashSet in java program? The hashSet class is used to create a collection and store it in a hash table. Each collection refer to a unique value. import java.util.Collections
Java collection HashSet How can we use HashSet in java program? The hashSet class is used to create a collection and store it in a hash table. Each collection refer to a unique value. import java.util.Collections
Java collection Vector
Java collection Vector How can we use the vector class in java program? The vector class is similar to the ArrayList class except that the vector class is synchronized. import java.util.Iterator; import
Java collection Vector How can we use the vector class in java program? The vector class is similar to the ArrayList class except that the vector class is synchronized. import java.util.Iterator; import
What is garbage collection? - Java Beginners
. How garbage collection works in java? Thanks Garbage Collection in Java In Java when program executes the JVM creates the object... in Java. Check the garbage collection code at http://www.roseindia.net/answers
. How garbage collection works in java? Thanks Garbage Collection in Java In Java when program executes the JVM creates the object... in Java. Check the garbage collection code at http://www.roseindia.net/answers
java collection - Development process
java collection - creating and comparing lists using Java How to compare two list in java? and i have to create two more list from old two list. Comparing and Creating new list in Java Java Example code for creating
java collection - creating and comparing lists using Java How to compare two list in java? and i have to create two more list from old two list. Comparing and Creating new list in Java Java Example code for creating
collection
, Hashtable and Collections and Collection? Enumeration : It is series... : It is re-sizable array implementation. Belongs to 'List' group in collection... Map in collection. Collections : It implements Polymorphic algorithms which
, Hashtable and Collections and Collection? Enumeration : It is series... : It is re-sizable array implementation. Belongs to 'List' group in collection... Map in collection. Collections : It implements Polymorphic algorithms which
Java HashSet Collection problem
Java HashSet Collection problem Here's how the HashSet works. It maintains an array of buckets. When an object is inserted, it finds the appropriate bucket corresponding to the objects HashCode. Then it calls the equals method
Java HashSet Collection problem Here's how the HashSet works. It maintains an array of buckets. When an object is inserted, it finds the appropriate bucket corresponding to the objects HashCode. Then it calls the equals method
Java Collection iterator with example
The Java Collection Iterator is present at the highest level interface in the Collection framework. Iterator interface has methods for traversing.... Example of Java Collection Iterator import java.util.ArrayList; import
The Java Collection Iterator is present at the highest level interface in the Collection framework. Iterator interface has methods for traversing.... Example of Java Collection Iterator import java.util.ArrayList; import
Java collection HashSet and TreeSet
Java collection HashSet and TreeSet How can we used HashSet and TreeSet in the both Example? import java.util.HashSet; import java.util.Set; import java.util.TreeSet; public class SetsExample{ public static
Java collection HashSet and TreeSet How can we used HashSet and TreeSet in the both Example? import java.util.HashSet; import java.util.Set; import java.util.TreeSet; public class SetsExample{ public static
Collection
Collection actually why do we need collections? means we can also store group of objects in relational data base and dbms also provides all the operatoins insert,delete,update,sort,search etc. then why collection
Collection actually why do we need collections? means we can also store group of objects in relational data base and dbms also provides all the operatoins insert,delete,update,sort,search etc. then why collection
java collection - Java Beginners
java collection want a java program using collections for an algorithm the algorithm is give below algorithm has some transactions T1=ABCE T2=CDE T3=DE T4=CDEG T5=BG T6=AE T7=BCG T8=C T9=A now compare T9
java collection want a java program using collections for an algorithm the algorithm is give below algorithm has some transactions T1=ABCE T2=CDE T3=DE T4=CDEG T5=BG T6=AE T7=BCG T8=C T9=A now compare T9
Java garbage collection
Java garbage collection How many times may an object's finalize() method be invoked by the garbage collector
Java garbage collection How many times may an object's finalize() method be invoked by the garbage collector
Java garbage collection
Java garbage collection Can an object be garbage collected while it is still reachable
Java garbage collection Can an object be garbage collected while it is still reachable
Collection
Collection i need a collections examples Please visit the following links: http://www.roseindia.net/javacodeexamples/index.shtml http://www.devmanuals.com/tutorials/java/collections
Collection i need a collections examples Please visit the following links: http://www.roseindia.net/javacodeexamples/index.shtml http://www.devmanuals.com/tutorials/java/collections
Which java collection to use in scenario below and Why?
Which java collection to use in scenario below and Why? I want to store thousands of record in a collection and later I want to search. For best and optimized results, which collection will I prefer
Which java collection to use in scenario below and Why? I want to store thousands of record in a collection and later I want to search. For best and optimized results, which collection will I prefer
Collection frame work - Java Beginners
Collection frame work How to a sort a list of objects ordered by an attribute of the object
Collection frame work How to a sort a list of objects ordered by an attribute of the object
Java Garbage Collection
Java Garbage Collection The Java language is the most widely used programming language to rely on garbage collection. The name "garbage collection" implies
Java Garbage Collection The Java language is the most widely used programming language to rely on garbage collection. The name "garbage collection" implies
garbage collection in java
.style1 { color: #FFFFFF; } Garbage Collection in Java In java...;java GarbageCollector Garbage Collection started explicitly. It took... are destroyed for later reallocation of their memory. In java this is done automatically
.style1 { color: #FFFFFF; } Garbage Collection in Java In java...;java GarbageCollector Garbage Collection started explicitly. It took... are destroyed for later reallocation of their memory. In java this is done automatically
java core collection - Java Interview Questions
java core collection why program in collection package throw two warnings(notes
java core collection why program in collection package throw two warnings(notes
Garbage collection process in java - Java Beginners
Garbage collection process in java Name the process used for Garbage collection in Java? Thanks Garbage collection process In Java the Garbage collection process is known as Garbage Collector. The Garbage
Garbage collection process in java Name the process used for Garbage collection in Java? Thanks Garbage collection process In Java the Garbage collection process is known as Garbage Collector. The Garbage
collection frame - Java Interview Questions
collection frame starting from jdk1.0 to jdk 1.5,what are the feature s added in each version of collection frame up to jdk1.5 . Hi friend, (1)Generics:Provides compile-time (static) type safety
collection frame starting from jdk1.0 to jdk 1.5,what are the feature s added in each version of collection frame up to jdk1.5 . Hi friend, (1)Generics:Provides compile-time (static) type safety
Collection framework
Collection framework what are the real life examples of using Collection in java
Collection framework what are the real life examples of using Collection in java
Collection Framework - Java Interview Questions
Collection Framework While inserting an object which sould be prefered- ArrayList or LinkedList and why? Inserting an object with ArrayListArrayListExample.javaimport java.util.*;import java.io.*;public class
Collection Framework While inserting an object which sould be prefered- ArrayList or LinkedList and why? Inserting an object with ArrayListArrayListExample.javaimport java.util.*;import java.io.*;public class
core java collection package - Java Interview Questions
core java collection package why collection package doesnot handle..., Java includes wrapper classes which convert the primitive data types into real Java Objects. There is no class in Java called int but there is a class called
core java collection package why collection package doesnot handle..., Java includes wrapper classes which convert the primitive data types into real Java Objects. There is no class in Java called int but there is a class called
What is the purpose of garbage collection in Java, and when is it used?
What is the purpose of garbage collection in Java, and when is it used? Hi, What is the purpose of garbage collection in Java, and when is it used... of Garbage collection in Java. so Please visit the link and clear your doubts
What is the purpose of garbage collection in Java, and when is it used? Hi, What is the purpose of garbage collection in Java, and when is it used... of Garbage collection in Java. so Please visit the link and clear your doubts
What is the best way to filter a Java Collection?
What is the best way to filter a Java Collection? Hi, I have... to filter a Java Collection? Thanks Hi, In Java 8 you can use... is using Java 8. Thanks Hi, We have huge collection of Java util package
What is the best way to filter a Java Collection? Hi, I have... to filter a Java Collection? Thanks Hi, In Java 8 you can use... is using Java 8. Thanks Hi, We have huge collection of Java util package
Ads