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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

How To Install Flink?

Last Updated: 15 July 2024

Flink is an open-source stream processing framework developed by the Apache Software Foundation. It's designed to process real-time data streams and batch data processing....read more

How to Convert String to Char Stream in Java without Using Library Functions?

Last Updated: 23 July 2025

In Java, we can convert a string to a char stream with a simple built-in method .toCharArray(). Here, we want to convert the string to a char stream without using built-in...read more

How to Perform Parallel Processing on Arrays in Java Using Streams?

Last Updated: 14 February 2024

In Java, parallel processing helps to increase overall performance. Arrays may be processed in parallel in Java by using Streams API. When working with big datasets or com...read more

Perform Parallel Processing on Arrays in Java Using Parallel Streams

Last Updated: 07 February 2024

Java's strong idea of parallel processing enables the simultaneous execution of tasks, enhancing application performance. Using Java's parallel streams is one approach to ...read more

Convert String to Stream of Chars in Java

Last Updated: 26 January 2024

The StringReader class from the java.io package in Java can be used to convert a String to a character stream. When you need to read characters from a string as though it ...read more

Find N'th Highest Salary Using Stream API

Last Updated: 08 February 2024

Consider a scenario where you have a dataset containing various salary values, and you need to find the Nth highest salary. This task might arise in applications ranging f...read more

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Java 8 Stream Tutorial

Last Updated: 24 April 2026

Java 8 introduced the Stream API, which allows developers to process collections of data in a functional and declarative way. Streams make it easier to perform operations...read more

Difference Between ObjectInputStream and ObjectOutputStream in Java

Last Updated: 23 July 2025

In a software project, in many instances, there are necessities to transfer the data, and it can be handled by using ObjectOutputStream and ObjectInputStream from Java IO ...read more

Difference Between FileInputStream and ObjectInputStream in Java

Last Updated: 19 July 2022

FileInputStream class extracts input bytes from a file in a file system. FileInputStream is meant for reading streams of raw bytes such as image data. For reading streams ...read more

Flattening Nested Collections in Java

Last Updated: 23 July 2025

A stream is a sequence of objects that supports various methods that can be pipelined to produce the desired result. Stream is used to compute elements as per the pipeline...read more

Comparing Streams to Loops in Java

Last Updated: 20 October 2022

A stream is an ordered pipeline of aggregate operations(filter(), map(), forEach(), and collect()) that process a (conceptually unbounded) sequence of elements. A stream p...read more

Intermediate Methods of Stream in Java

Last Updated: 23 July 2025

The Stream API is used to process collections of objects. A stream is a sequence of objects that supports various methods which can be pipelined to produce the desired res...read more

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Collecting a Stream to an Immutable Collection in Java

Last Updated: 23 July 2025

Streams and Collectors were introduced in Java 8 introduced the concept of Streams. A Stream is a sequence, a sequence of objects. We generate Streams from input sources l...read more

Correct Ways to Close InputStream and OutputStream in Java with Examples

Last Updated: 12 March 2021

Since IO needs you to deal with streams, channels, and file descriptors that need to be closed properly, it is uncomfortable for Java developers to deal with them. Because...read more

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