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What are the changes in Java 8?

What are the changes in Java 8?

Six Important New Features in Java 8 (JDK 8)

  • Permanent Generation.
  • Parallel Array Sorting.
  • Base64 encoding and decoding.
  • Date & Time API.
  • Functional Interfaces.
  • Lambda expressions.

How many types of threads are there in Java?

Java offers two types of threads: user threads and daemon threads. User threads are high-priority threads. The JVM will wait for any user thread to complete its task before terminating it.

What are some of the improvements in concurrency API in Java 8?

Concurrency Utilities Enhancements in Java SE 8

  • New classes and interfaces in java. util. concurrent. The java. util.
  • New methods in java. util. concurrent. ConcurrentHashMap.
  • New classes in java. util. concurrent. atomic.
  • New methods in java. util. concurrent. ForkJoinPool.
  • New class java. util. concurrent. locks.
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What are collection related features in Java 8?

Java 8 provides following features for Java Programming:

  • Lambda expressions,
  • Method references,
  • Functional interfaces,
  • Stream API,
  • Default methods,
  • Base64 Encode Decode,
  • Static methods in interface,
  • Optional class,

What are types of threads?

Six Most Common Types of Threads

  • UN/UNF.
  • NPT/NPTF.
  • BSPP (BSP, parallel)
  • BSPT (BSP, tapered)
  • metric parallel.
  • metric tapered.

What is Java thread model?

A Java thread is an instantiation of the Thread class. A thread must be created from a thread base which is any object whatsoever which defines the run function. A thread contains a thread base and adds hidden control structures in order to permit the thread to run concurrently with other threads.

What are the different ways to create thread?

There are two ways to create a thread:

  • extends Thread class.
  • implement Runnable interface.

What is thread in Java 8?

Thread (Java Platform SE 8 ) java.lang.Object. java.lang.Thread. All Implemented Interfaces: Runnable. Direct Known Subclasses: ForkJoinWorkerThread. public class Thread extends Object implements Runnable. A thread is a thread of execution in a program.

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What is the version number of JDK 8u5?

The version number is 8u5. This update release contains enhancements and changes including the following: JDK 8u5 contains Olson time zone data version 2013i. For more information, refer to Timezone Data Versions in the JRE Software.

How to print the current thread name in Java 8 runnable?

Since Runnable is a functional interface we can utilize Java 8 lambda expressions to print the current threads name to the console. First we execute the runnable directly on the main thread before starting a new thread. The result on the console might look like this:

How does Java handle multiple threads in a single process?

The Java Virtual Machine allows an application to have multiple threads of execution running concurrently. Every thread has a priority. Threads with higher priority are executed in preference to threads with lower priority. Each thread may or may not also be marked as a daemon.