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7 Cards in this Set
- Front
- Back
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What is the Java API?
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The Java API is a large collection of ready-made software components that provide many useful capabilities, such as graphical user interface (GUI) widgets.
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What is the package?
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The package is a Java namespace or part of Java libraries. The Java API is grouped into libraries of related classes and interfaces; these libraries are known as packages.
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What is native code?
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The native code is code that after you compile it, the compiled code runs on a specific hardware platform.
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What is the serialization?
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The serialization is a kind of mechanism that makes a class or a bean persistence by having its properties or fields and state information saved and restored to and from storage.
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What is a transient variable?
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A transient variable is a variable that may not be serialized. If you don't want some field not to be serialized, you can mark that field transient or static.
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What is synchronization and why is it important?
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With respect to multithreading, synchronization is the capability to control the access of multiple threads to shared resources. Without synchronization, it is possible for one thread to modify a shared object while another thread is in the process of using or updating that object's value. This often causes dirty data and leads to significant errors.
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What are synchronized methods and synchronized statements?
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Synchronized methods are methods that are used to control access to an object. A thread only executes a synchronized method after it has acquired the lock for the method's object or class. Synchronized statements are similar to synchronized methods. A synchronized statement can only be executed after a thread has acquired the lock for the object or class referenced in the synchronized statement.
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