java-lambda Archives - GeeksforGeeks

Remove elements from a List that satisfy given predicate in Java

Last Updated: 23 July 2022

Below are the methods to efficiently remove elements from a List satisfying a Predicate condition:p == Predicate, specifying the conditionl == List, from which element t...read more

Check if a String Contains Only Alphabets in Java Using Lambda Expression

Last Updated: 01 September 2022

Lambda expressions basically express instances of functional interfaces (An interface with a single abstract method is called functional interface. An example is java.lang...read more

Remove repeated elements from ArrayList in Java

Last Updated: 11 December 2018

Prerequisite: ArrayList in JavaGiven an ArrayList, the task is to remove repeated elements of the ArrayList in Java.Examples:Input: ArrayList = [1, 2, 2, 3, 4, 4, 4] Outpu...read more

Java

Technical Scripter

Technical Scripter 2018

Closures in Java with Examples

Last Updated: 05 June 2023

A method is a collection of statements that perform some specific task and return the result to the caller. A method can perform some specific task without returning anyth...read more

Java Method References

Last Updated: 23 May 2025

In Java, a method is a collection of statements that perform some specific task and return the result to the caller. A method reference is the shorthand syntax for a lambd...read more

Java

java-lambda

Java 8

Check if a String Contains only Alphabets in Java

Last Updated: 28 November 2024

In Java, to check if a string contains only alphabets, we have to verify each character to make sure it falls within the range of valid alphabetic characters. There are va...read more

java-regular-expression

Converting ArrayList to HashMap in Java 8 using a Lambda Expression

Last Updated: 17 August 2021

A lambda expression is one or more line of code which works like function or method. It takes a parameter and returns the value. Lambda expression can be used to convert A...read more

Technical Scripter 2020

Block Lambda Expressions in Java

Last Updated: 22 June 2022

Lambda expression is an unnamed method that is not executed on its own. These expressions cause anonymous class. These lambda expressions are called closures. Lambda's bod...read more

Java

java-lambda

Serialization of Lambda Expression in Java

Last Updated: 18 January 2022

Here we will be discussing serialization in java and the problems related to the lambda function without the serialization alongside discussing some ways due to which we r...read more

Java

Picked

java-lambda

Java - Lambda Expressions Parameters

Last Updated: 15 July 2024

Lambda Expressions are anonymous functions. These functions do not need a name or a class to be used. Lambda expressions are added in Java 8. Lambda expressions express in...read more

Misc

Java

java-lambda

Java - Lambda Expression Variable Capturing with Examples

Last Updated: 24 July 2024

Variable defined by the enclosing scope of a lambda expression are accessible within the lambda expression. For example, a lambda expression can use an instance or static ...read more

Match Lambdas to Interfaces in Java

Last Updated: 17 January 2022

One of the most popular and important topics is lambda expression in java but before going straight into our discussion, let us have insight into some important things. St...read more

Generate an Array by multiplying each element of given Array by K

Last Updated: 19 January 2022

Given an array arr[] of size N and an integer K. The task is to multiply each element of the array by K.Examples :Input: arr[] = { 3, 4 }, K = 2Output: 6 8Explanation: The...read more

Java

Mathematical

Computer Science Fundamentals

DSA

Arrays

java-lambda

Java Lambda Expressions

Last Updated: 16 April 2025

Lambda expressions in Java, introduced in Java SE 8. It represents the instances of functional interfaces (interfaces with a single abstract method). They provide a concis...read more

Java

java-lambda

Java 8

Java Stream & Lambda Expression Coding Practice Problems

Last Updated: 05 March 2025

Java Streams and Lambda Expressions provide a powerful way to perform functional-style operations on collections. This collection of Java Stream and Lambda Expression prac...read more