10 Best ways to Iterate through HashMap in Java

As a Java developer, everyone should know how to iterate through HashMap, because this will become a part of his daily programming. Unlike other Collections, we cannot iterate directly through HashMap, but need to iterate through keySet or entrySet.

You can find the code in github by clicking on the link below :

01 : Method 1. Iterate through a HashMap using KeySet and for Loop
02 : Method 2. Iterate through a HashMap EntrySet using for loop
04 : Method 4. Iterate through HashMap KeySet using Iterator
05 : Method 5. Iterate a HashMap using For-each Loop [KeySet]
06 : Method 6. Iterating through a HashMap using Lambda Expressions
07 : Method 7. Iterate through a HashMap entrySet using Lambda Expressions
08 : Method 8. Loop through a HashMap using Stream API
09 : Method 9. Using Stream of() method