The lambda expression is an inline code that can implement a functional interface without creating an anonymous class. An ArrayList can be used to store a dynamically sized collection of elements.In the below program, We have removed the elements of an ArrayList whose age is less than or equal to 20 using the removeIf() method. ... Read More

The method reference is similar to a lambda expression that refers to a method without executing it and "::" operator can be used to separate a method name from the name of an object or class in a method reference.The methods can be referenced with the help of this and super ... Read More

A functional Interface for which a lambda expression has invoked is called target type of lambda expression. It means that if a lambda expression has invoked for some "X" interface then "X" is the target type of that lambda expression. Hence, we conclude that lambda expressions can be used only in those ... Read More

The conditional operator is used to make conditional expressions in Java. It is also called a Ternary operator because it has three operands such as boolean condition,  first expression, and second expression.We can also write a conditional expression in lambda expression in the below program.Exampleinterface Algebra {    int substraction(int ... Read More

A cast expression provides a mechanism to explicitly provide a lambda expression's type if none can be conveniently inferred from context. It is also useful to resolve ambiguity when a method declaration is overloaded with unrelated functional interface types.SyntaxObject o = () -> { System.out.println("TutorialsPoint"); }; // Illegal: Object o = ... Read More

A return statement is not an expression in a lambda expression. We must enclose statements in braces ({}). However, we do not have to enclose a void method invocation in braces. The return type of a method in which lambda expression used in a return statement must be a functional interface.Example 1public class ... Read More

An array is a fixed size element of the same type. The lambda expressions can also be used to initialize arrays in Java. But generic array initializes cannot be used.Example-1interface Algebra {    int operate(int a, int b); } public class LambdaWithArray1 {    public static void main(String[] args) { ... Read More

In Java 8, lambda expression accepts an anonymous function as a parameter. In the case of providing an anonymous method, we can also pass references of existing methods using "::" symbol. A method reference enables us to do the same thing but with existing methods.We can also implement an action listener for ... Read More

Lambda expression is an anonymous method (method without a name) that has used to provide the inline implementation of a method defined by the functional interface while a method reference is similar to a lambda expression that refers a method without executing it. The arrow (->) operator can be used to connect the argument and ... Read More

A method reference is a new feature in Java 8, which is related to Lambda Expression. It can allow us to reference constructors or methods without executing them. The method references and lambda expressions are similar in that they both require a target type that consists of a compatible functional interface.SyntaxClass :: instanceMethodNameExampleimport java.util.*; ... Read More