Snippets tagged “iterator”
9 snippets use this tag.
- Calling remove in foreach loop in JavaJava
If you want to remove elements from a collection while iterating over it using a for-each loop in Java, you must use an iterator instead of the looping construct.
- HashMap - getting First Key valueJava
To get the first key-value pair from a HashMap in Java, you can use the entrySet() method to get a set of the map's entries and then use the iterator() method to get an iterator for the set.
- How do I efficiently iterate over each entry in a Java Map?Java
There are several ways to iterate over the entries in a Map in Java. Here are some options:
- How to get the first element of the List or Set?Java
To get the first element of a List or Set in Java, you can use the following methods:
- How to iterate over a JSONObject?Java
To iterate over the key/value pairs in a JSONObject, you can use the keys method to get an iterator over the keys in the object, and then use the get method to get the value for each key.
- Iterate through a HashMapJava
There are several ways to iterate through a HashMap in Java: Using the for-each loop
- Java: Get first item from a collectionJava
To get the first item from a collection in Java, you can use the iterator() method to get an iterator for the collection, and then call the next() method on the iterator to get the first element.
- Ways to iterate over a list in JavaJava
There are several ways to iterate over a List in Java. Here are some of the most common approaches:
- What is the easiest/best/most correct way to iterate through the characters of a string in Java?Java
There are several ways you can iterate through the characters of a string in Java.