BooleanSupplier Interface is a part of the java.util.function package which is introduced in Java 8. It is an in-built Functional Interface. This function doesn’t expect any input but produces a boolean-valued output. In this post, we are going to see several implementations of BooleanSupplier Interface by using different examples.

BooleanSupplier_Interface_Java8_Techndeck

BooleanSupplier Interface in Java 8 Examples...!!! Click To Tweet

Look at BooleanSupplier Javadoc description below:

BooleanSupplierInterface_Signature_Java8_Techndeck

As you’ve seen in the above screenshot, BooleanSupplier Interface contains only the following function:

boolean getAsBoolean();

This method represents a supplier of boolean-valued results. This is the boolean-producing primitive specialization of Supplier.

Example:

Java 8 BooleanSupplier Interface is an absolute useful addition as part of ‘Functional Interfaces’ and can serve variety of purposes. It is quite powerful as it can be used as a higher order functions through lambda functions and above examples could help you to get better idea on how to implement it.

BooleanSupplier Interface in Java 8 Examples...!!! Click To Tweet

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