String program #2- Reverse A String In Java using Java8 Stream API | using Lambda expr by Naren

Publicado el: 26 diciembre 2023
en el canal de: Naren Java Help Line
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#JavaStringReverse #java8 #java8StreamApi
lets discuss how to Reverse A String In Java using Java8 Stream API, using Lambda expression, this is a very imp interview question on core java.

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🙋‍♂️ 🙋‍♀️ Any doubts ?? Please ask in comments

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👉    • Stream API in java 8 | Need of Stream...  
Stream api in Java 8 is very important in Java 8. In this video we are going to learn all basics concept of java 8 Stream API step by step.
I am going to explain each and every important concept of stream with how to perform operations with stream and all important methods and functionality.

What is Stream API?
Method in a stream interface
Difference between stream API and I/O stream
forEach method in a list interface


#1
Stream API is the concept introduced in Java 1.8 version.
The Stream API is used to process collections of objects.
Stream is a sequence of objects that supports various methods to produce the desired result.
asList() is a method that gives a list that belongs to a class array.
Stream is an interface that belongs to java.lang package.
Stream interface provides a lot of methods like filter(), map(), reduce(), etc.
A stream is not a data structure instead it takes input from Collections like arrays.

#2
Normal for loop iterates over the elements one by one whereas enhanced for loop array itself give a value and that value goes into a variable say n.
We can also print all the values present in an array by using the forEach method().
forEach method gives one value at a time and we can save that value in a variable say n and print it.
nums.forEach( n- System.out.println(n));
forEach method is part of a list interface, that gives one value at a time and then you can perform operations on it.

#java8,
#java8StreamApi,
#java8interviewquestions,
#NarenJavaHelpLine
Naren Java Help Line


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