Java Language
- Getting started with Java Language
- Top 10 Java Errors with Solutions
- Awesome Book
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- Awesome Course
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- 2D Graphics in Java
- Alternative Collections
- Annotations
- Apache Commons Lang
- AppDynamics and TIBCO BusinessWorks Instrumentation for Easy Integration
- Applets
- Arrays
- Asserting
- Atomic Types
- Audio
- Autoboxing
- Auto-unboxing may lead to NullPointerException
- Different Cases When Integer and int can be used interchangeably
- Memory and Computational Overhead of Autoboxing
- Using Boolean in if statement
- Using int and Integer interchangeably
- Basic Control Structures
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- The java.util.Objects Class
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- Type Conversion
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- Using the static keyword
- Using ThreadPoolExecutor in MultiThreaded applications.
- Varargs (Variable Argument)
- Visibility (controlling access to members of a class)
- WeakHashMap
- XJC
- XML Parsing using the JAXP APIs
- XML XPath Evaluation
- XOM - XML Object Model
Java Language Autoboxing Using Boolean in if statement
Example
Due to auto unboxing, one can use a Boolean in an if statement:
Boolean a = Boolean.TRUE;
if (a) { // a gets converted to boolean
System.out.println("It works!");
}
That works for while, do while and the condition in the for statements as well.
Note that, if the Boolean is null, a NullPointerException will be thrown in the conversion.
