JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Java Enum Examples


Description:

Few points about enum types are:

they are implicitly final subclasses of java.lang.Enum. Enum constants are by default public static final fields. If you declare Enum is a member of your class, then by default it is static. We should not use new operator with enum type at anytime.

List Of All Enum Programs:

  1. Basic Enum example.
  2. How to call enum, which is defined inside a class?
  3. How to override toString() method with enum?
  4. How to create custom constructor enum?
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What is fail-fast in java?
A fail-fast system is nothing but immediately report any failure that is likely to lead to failure. When a problem occurs, a fail-fast system fails immediately. In Java, we can find this behavior with iterators. Incase, you have called iterator on a collection object, and another thread tries to modify the collection object, then concurrent modification exception will be thrown. This is called fail-fast.
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The greatest obstacle to discovery is not ignorance; it is the illusion of knowledge.
-- Daniel J. Boorstin

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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