Java: Supplier ☕
The Supplier Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a function which does not take in any argument but produces a value of type T.
The lambda expression assigned to an object of Supplier type is used to define its get() which eventually produces a value. Suppliers are useful when we don’t need to supply any value and obtain a result at the same time. The Supplier interface consists of only one function get().
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