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Why do you use synchronized block in java?
A Synchronized block is a block of code enclosed by the {} braces that has a synchronized keyword before it. This block of code is similar to a synchronized method and only one thread can access it at a time.
What are the synchronized methods and synchronized statements in java?
Synchronized Methods are methods that have the keyword synchronized in the method signature. Synchronized statements are pieces of java code that are surrounded by brackets which have the keyword synchronized qualifying them. Both cases mean that - only one thread will be able to access the method or the statement that is synchronized
How you make shared and synchronized variable in java thread?
A Variable that is shared as well as synchronized cannot be created in Java. These two terms are mutually exclusive and a variable that is synchronized in java cannot be shared and vice versa
What is synchronized object in java?
synchronisation means one resource should use one system at a time
What is synchronize in java?
Synchronization is a feature by which only one thread can access a resource in a particular time of instance. No other thread can interrupt for that resource. In java to make our method synchronize we use synchronized keyword with that method. So Synchronization is just managing the resources among Threads. Vijai Shanker Just to add with the invent of Java 5 we have more option to write synchronized code in Java instead of using synchronized keyword we can use Lock Classes available in concurrency package.
General syntax in creating a method?
A Java method declaration will look like this:[access modifier] [static] [final] [synchronized] [return type] [method name]([parameters])Where:access modifier is exactly one of the followingpublicprotected(no text)privatestatic, final, and synchronized are all optional.return type is exactly one of the followingvoidThe name of a Java primitiveThe name of a Java classmethod name is a valid Java identifier which must conform to all of the following rulesStarts with a lowercase letter (a-z), an uppercase letter (A-Z), a dollar sign ($), or an underscore (_)After the first character, may be a digit(0-9), a lowercase letter (a-z), an uppercase letter (A-Z), a dollar sign ($), or an underscore (_)May not be one of the Java keywordsMay not be one of the Java literals: true, false, or nullparameters is a comma-separated list of [type] [identifier] pairs, where:type is a valid Java primitive or class nameidentifier is a Java identifier, which conforms to the same rules as method name
Can a method be static and synchronized?
Yes. In Java methods can be static and synchronized. Static methods access other static members in the class. Static in case of inheritance are treated as non - static. Synchronized methods are those which have dedicated thread attached to it and no other can access until currrent thread leaves the control from it.
Where can one purchase synchronized Christmas lights?
One can purchase synchronized Christmas lights from the Synchronized Christmas website. The website has a large variety of Christmas lights within their inventory.
Which all represent the properties of hashtable in java?
HashTableLike Vector, Hashtable has existed from prehistoric Java times. For fun, don't forget to note the naming inconsistency: HashMap vs. Hashtable. Where's the capitalization of t? Oh well, you won't be expected to spell it. Anyway, just as Vector is a synchronized counterpart to the sleeker, more modern ArrayList, Hashtable is the synchronized counterpart to HashMap. Remember that you don't synchronize a class, so when we say that Vector and Hashtable are synchronized, we just mean that the key methods of the class are synchronized. Another difference, though, is that while HashMap lets you have null values as well as one null key, a Hashtable doesn't let you have anything that's null.
Difference between hashtable and hashmap in java?
1) hashtable is synchronized , hashmap is not 2) hashtable is slow , hashmap is fast 3) hashtable is old and hashmap is new
Where can one find java plugin downloads?
There are several sites online where one can download the Java plugin such as Java, Oracle, Cnet, and Microsoft. One can find their current version of Java by visiting the Java Tester website.
How threads are synchronized in a java?
By using an Runnable and Thread object. EX: Runnable r = new Runnable() { Thread t = new Thread() { @Override public void run() { //place code for new thread here } }; @Override public void run() { t.start(); } }; r.run();
