Lambda Expressions in Java

Properties of Lambda Expressions in Java

As we all know that Lambda expressions in Java are just unnamed and unknown functions. However, it still has numerous subsequent properties:

  1. Lambda Expressions in Java are anonymous because they do not hold any specific name like every other method would usually have. So, it’s clearly less to write and less to remember about.
  2. In Java Lambda Expressions, there is no necessity to write several boilerplates as we do for anonymous classes.
  • A Java lambda expression can be used to be carried as an argument to any function. Java lambda expressions can also be saved in a variable.
  • Lambda expression in Java can also be imagined as a function because lambda expression is not correlated with a particular class similar to a method is. However, like a method, a lambda expression in Java has a list of parameters. It also has a body and a return type. In addition, Java Lambda Expressions contains a potential list of exceptions that can be thrown at any time during the process is running.

Features of Lambda Expressions in Java

Lambda Expressions in Java are mainly recognized because of their features. These characteristics are as follows:

  1. In Java Lambda Expressions, there is no necessity to declare the type or return type of a parameter. That is because the Java compiler can deduce the type of the parameter by looking at its value (parameter’s value).
  • When the expression body contains only a single statement, then there is no need to use the curly braces in Lambda expressions.
  • In Java Lambda expressions, parentheses are required only for the multiple parameters. For a single parameter, there is no need to use the parentheses or to declare a parameter inside the parentheses.
  • In a body of a single expression to return a value, then the Java compiler automatically returns that value. If a user wants to show that their expression is returning a value, then curly braces are needed to symbolize that expression.

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