Find the first element of a Stream in Java
Given a stream containing some elements, the task is to get the first element of the Stream in Java. Example: Input: Stream = {“Geek_First”, “Geek_2”,… Read More »
Tag Archives: Java-Stream-programs
Find the last element of a Stream in Java
Given a stream containing some elements, the task is to get the last element of the Stream in Java. Example: Input: Stream={“Geek_First”, “Geek_2”, “Geek_3”, “Geek_4”,… Read More »
How to find duplicate elements in a Stream in Java
Given a stream containing some elements, the task is to find the duplicate elements in this stream in Java. Examples: Input: Stream = {5, 13,… Read More »
Count occurrence of a given character in a string using Stream API in Java
Given a string and a character, the task is to make a function which counts the occurrence of the given character in the string using… Read More »
10 Ways to Create a Stream in Java
The Stream API, introduced in Java 8, it is used to process collections of objects. Stream is a sequence of objects, that supports many different… Read More »
Reverse elements of a Parallel Stream in Java
Given a Parallel Stream in Java, the task is to reverse its elements. Examples: Input: Parallel Stream = {11, 22, 33, 44} Output: {44, 33,… Read More »
How to get ArrayList from Stream in Java 8
Given a Stream, the task is to convert this Stream into ArrayList in Java 8. Examples: Input: Stream: [1, 2, 3, 4, 5] Output: ArrayList:… Read More »
Generate Infinite Stream of Double in Java
Given the task is to generate an infinite sequential unordered stream of double in Java. This can be done in following ways: Using DoubleStream.iterate(): Using… Read More »
Generate Infinite Stream of Integers in Java
Given the task is to generate an infinite sequential unordered stream of integers in Java. Recommended: Please try your approach on {IDE} first, before moving… Read More »
Program to Iterate over a Stream with Indices in Java 8
Given a Stream in Java, the task is to iterate over it with the help of indices. Examples: Input: Stream = [G, e, e, k,… Read More »
Flatten a Stream of Arrays in Java using forEach loop
Given a Stream of Arrays in Java, the task is to Flatten the Stream using forEach() method. Examples: Input: arr[][] = {{ 1, 2 },… Read More »
Flatten a Stream of Lists in Java using forEach loop
Given a Stream of Lists in Java, the task is to Flatten the Stream using forEach() method. Examples: Input: lists = [ [1, 2], [3,… Read More »
Flatten a Stream of Map in Java using forEach loop
Given a Stream of Map in Java, the task is to Flatten the Stream using forEach() method. Examples: Input: map = {1=[1, 2], 2=[3, 4,… Read More »
How to print elements of a Stream in Java 8
Introduced in Java 8, the Stream API is used to process collections of objects. A stream is a sequence of objects that supports various methods… Read More »
Convert a String to a List of Characters in Java
Given a String, the task is to convert it into a List of Characters in Java. Examples: Input: String = “Geeks” Output: [G, e, e,… Read More »
