In this article, we will see “How to iterate an Array using forEach statement in Java 8”. Here, we will go through several examples to understand this feature.
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Example 1. Array with forEach (Java 8)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | import java.util.Arrays; import java.util.function.Consumer; public class ForEach_Java8_Array_Example { public static void main(String[] args) { String[] names = { "noni", "yogi", "dv", "pulkit", "isha", "yashi", "yashu" }; //Anonymous Class Implementation System.out.println("forEach Anonymous Class Implementation:\n"); System.out.println("List names:\n "); Arrays.stream(names).forEach(new Consumer < String > () { @Override public void accept(String v) { System.out.println(v); } }); //Lambda Implementation System.out.println("\nLambda Implementation:\n"); System.out.println("List names: \n"); Arrays.stream(names).forEach((v) -> {System.out.println(v);}); //Method Reference Implementation System.out.println("\nMethod Reference Implementation:\n"); System.out.println("List names: \n"); Arrays.stream(names).forEach(System.out::println); } } |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | forEach Anonymous Class Implementation: List names: noni yogi dv pulkit isha yashi yashu Lambda Implementation: List names: noni yogi dv pulkit isha yashi yashu Method Reference Implementation: List names: noni yogi dv pulkit isha yashi yashu |
Example 2. Array with forEach (conditional) (Java 8)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | import java.util.Arrays; public class ForEach_Java8_Array_Conditional_Example { public static void main(String[] args) { String[] names = { "noni", "yogi", "dv", "pulkit", "isha", "yashi", "yashu" }; //Array Conditional check System.out.println("Check the array if it contains a person with name 'pulkit':\n"); Arrays.stream(names).forEach((name) -> { if (name.equals("pulkit")) { System.out.println("Expected name 'pulkit' is present in the array"); } }); } } |
1 2 3 | Check the array if it contains a person with name 'pulkit': Expected name 'pulkit' is present in the array |
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