Wednesday, January 15, 2025
HomeProgrammingHow do I efficiently iterate over each entry in a Java Map?

How do I efficiently iterate over each entry in a Java Map?

In Java, you can efficiently iterate over each entry in a Map using an enhanced for loop with Map.Entry. Here’s how:

java
Map<KeyType, ValueType> map = new HashMap<>();
// Populate the map

for (Map.Entry<KeyType, ValueType> entry : map.entrySet()) {
KeyType key = entry.getKey();
ValueType value = entry.getValue();
// Use the key and value
}

Alternatively, you can use the forEach method with a lambda expression:

java
map.forEach((key, value) -> {
// Process key and value
});

This provides an efficient and clean way to iterate over map entries.

RELATED ARTICLES
0 0 votes
Article Rating

Leave a Reply

0 Comments
Oldest
Newest Most Voted
Inline Feedbacks
View all comments
- Advertisment -

Most Popular

Recent Comments

0
Would love your thoughts, please comment.x
()
x