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Tag: java-stream

Java Stream of Multiple Lists

Java Stream of Multiple Lists

September 20, 2018Java Developer Zone

Overview In Java 8, we know how to get a stream of List using stream() or parrallelStream() method of Collection interface. But what if we want a stream of two…

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Java stream filter null values

Java stream filter null values

September 20, 2018Java Developer Zone

Overview Java List and Map may contain null values (elements) and sometimes we need to filter those null elements to avoid NullPointerException before going to process it using stream API….

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Java Find duplicate objects in list

Java Find duplicate objects in list

July 17, 2017Java Developer Zone

Here is different ways to find duplicate objects in list like Find duplicate objects in list using Set ,Find duplicate objects in list using Stream Group by, hash map etc…..

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Java Stream takeWhile - dropWhile Example

Java Stream takeWhile and dropWhile Example

July 9, 2017Java Developer Zone

java Stream takeWhile and java Stream dropWhile elements is part of Java 9 or letter version. Java Stream takeWhile it will not consider elements once predicate returns false. It used…

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Java stream findfirst example

Java stream findfirst example

July 9, 2017Java Developer Zone

Returns an Optional describing the first element of this stream, or an empty Optional if the stream is empty. If the stream has no encounter order, then any element may…

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JAVA 8 STREAM FLATMAP EXAMPLE

Java 8 Stream flatMap example

May 21, 2017Java Developer Zone

“flatMap name itself suggest that it is a combination of a map and a flat. It means that first we apply Function to our element and then flatten it” Stream.map…

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JAVA 8 CONVERT ARRAY TO STREAM

Java 8 convert Array to Stream

May 21, 2017Java Developer Zone

This article contains different ways for Java 8 convert Array to Stream i.e. Stream.of and Array.stream using those methods, Array can be converted in Stream to perform iteration easily. Example…

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JAVA 8 CONVERT STREAM TO ARRAY

Java 8 convert Stream to Array

May 21, 2017Java Developer Zone

Here is example of Java 8 convert Stream to Array like using ::new operator and IntFunction arguments. Stream contains toArray function using that we can convert Stream to Array. Example 1:…

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