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.
Iterate Array using Java 8 forEach...!!! Share on X
Example 1. Array with forEach (Java 8)
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);
}
}
Output:
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)
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");
}
});
}
}
Output:
Check the array if it contains a person with name 'pulkit': Expected name 'pulkit' is present in the array
Iterate Array using Java 8 forEach...!!! Share on X
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