Java - How to use Stream Filter in Java 8 with List & Array Examples » grokonez

Java - How to use Stream Filter in Java 8 with List & Array Examples » grokonez

Java 8 provides an extremely powerful abstract concept Stream with many useful mechanics for consuming and processing data in Java Collection. In the tutorial, We will use lots of examples to explore more the helpful of Stream API with filtering function on the specific topic: “Filter Collection with Java 8 Stream”. What will we do? … Continue reading "Java – How to use Stream Filter in Java 8 with List & Array Examples"

https://grokonez.com/java/java-8/java-how-to-use-stream-filter-in-java-8-with-list-array-examples

Java – How to use Stream Filter in Java 8 with List & Array Examples

[no_toc] Java 8 provides an extremely powerful abstract concept Stream with many useful mechanics for consuming and processing data in Java Collection. In the tutorial, We will use lots of examples to explore more the helpful of Stream API with filtering function on the specific topic: "Filter Collection with Java 8 Stream".

What will we do?

  • How to filter List with traditional approach?
  • Use Java 8 Stream to filter List and Array Objects
  • Apply filter() function with other util functions of Stream API in practice

Now let's do examples for more details!

Related posts:

Java Filter List by Traditional Approach with Looping

Before Java 8, for filtering a List Objects, we use the basic approach with looping technical solution.

Looping Example - Filter Integer List

- Example: How to get all even number in a list?

List intList = Arrays.asList(1, 2, 3, 4, 5, 7, 10, 11, 16);

for(Integer i: intList) {
    if(i%2==0) {
        System.out.println(i);
    }
}
/*
    2
    4
    10
    16
 */

Looping Example - Filter String List

- Example: How to get all string that contains "Java" sub-string in a string List?

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https://grokonez.com/java/java-8/java-how-to-use-stream-filter-in-java-8-with-list-array-examples

Java – How to use Stream Filter in Java 8 with List & Array Examples

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Java 8 provides an extremely powerful abstract concept Stream with many useful mechanics for consuming and processing data in Java Collection. In the tutorial, We will do lots of examples to explore more the helpful of Stream API with reduction operation on the specific topic: “Java 8 Stream Reduce Collection”. What will we do? Explain … Continue reading "How to use Java 8 Stream Reduce Examples with List and Array"