Flash cards
Review the key moves
1/4
Core idea
What is the main idea behind Java LinkedList replaceAll() Method?
Lesson checks
Practice each idea before moving on
Short Mimo-style checks built from this lesson's code, terms, and sequence.
1Quick choice
Which statement best captures the main point of this lesson?
2Fill blank
Complete the missing token from the example code.
___ java.util.LinkedList;3Order
Put the learning moves in the order that makes the concept easiest to apply.
The replaceAll() method replaces every item in a list with the result of performing an operation on the item.
Definition and Usage
Java LinkedList replaceAll() Method
❮ LinkedList Methods
Example
import java.util.LinkedList;
public class Main {
public static void main(String[] args) {
LinkedList<Integer> numbers = new LinkedList<Integer>();
numbers.add(5);
numbers.add(9);
numbers.add(8);
numbers.add(6);
numbers.add(1);
numbers.replaceAll( n -> n + 1 );
System.out.println(numbers);
}
}Definition and Usage
The replaceAll() method replaces every item in a list with the result of performing an operation on the item. The operation can be defined by a lambda expression that is compatible with Java's UnaryOperator interface.
To learn about lambda expressions, see our Java Lambda Expression tutorial .
Syntax
public void replaceAll(UnaryOperator
operator )Parameter Values
| Parameter | Description |
|---|---|
| operator | Required. A UnaryOperator or lambda expression which operates on each item from the list. |