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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

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

Last Updated: 23 July 2025

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

DSA

java-lambda

Match Lambdas to Interfaces in Java

Last Updated: 23 July 2025

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

Lambda Expression Variable Capturing with Examples

Last Updated: 25 October 2025

When we write a lambda expression in Java, it can access variables that are defined outside its own block, such as variables from the surrounding method or class. This pr...read more

Java - Lambda Expressions Parameters

Last Updated: 23 July 2025

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

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

Block Lambda Expressions in Java

Last Updated: 23 July 2025

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

Converting ArrayList to HashMap in Java 8 using a Lambda Expression

Last Updated: 23 January 2026

Lambda expressions provide a concise way to perform operations on collections without writing boilerplate loops. Using lambdas, an ArrayList can be easily converted into a...read more

Technical Scripter 2020

Check if a String Contains only Alphabets in Java

Last Updated: 15 July 2025

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

Java-Strings

java-regular-expression

Java Method References

Last Updated: 26 May 2026

Java Method References are a shorthand way to refer to an existing method without invoking it. They were introduced in Java 8 to make lambda expressions shorter, cleaner, ...read more

Java

java-lambda

Java 8

Closures in Java with Examples

Last Updated: 15 July 2025

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

Remove repeated elements from ArrayList in Java

Last Updated: 11 July 2025

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

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

Last Updated: 20 February 2026

Lambda Expressions in Java provide a concise way to represent a method using an expression instead of a full method definition. Validating strings to ensure they contain o...read more

Remove elements from a List that satisfy given predicate in Java

Last Updated: 23 January 2026

In Java, elements can be removed from a List based on a specific condition using a Predicate, which represents a true/false test. Java provides multiple efficient ways to ...read more

Java Lambda Expressions

Last Updated: 08 May 2026

lambda expressions, introduced in Java 8, allow developers to write concise, functional-style code by representing anonymous functions. They enable passing code as paramet...read more

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