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Java LinkedList indexOf() Method

Flash cards

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1/4
Core idea

What is the main idea behind Java LinkedList indexOf() 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 indexOf() method returns the position of the first occurrence of a value in the list.
Definition and Usage
Java LinkedList indexOf() Method

❮ LinkedList Methods

Example

import java.util.LinkedList;
public class Main {
  public static void main(String[] args) {
    LinkedList<String> cars = new LinkedList<String>();
    cars.add("Volvo");
    cars.add("BMW");
    cars.add("Ford");
    cars.add("Mazda");
    System.out.println(cars.indexOf("Ford"));
  }
}

Definition and Usage

The indexOf() method returns the position of the first occurrence of a value in the list. If the item is not found in the list then it returns -1.

Syntax

public int indexOf(Object
item )

Parameter Values

ParameterDescription
itemRequired. The item to search for in the list.

Technical Details

Returns:The position of the first occurrence of the item in the list, or -1 if the item is not found.

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Java LinkedList isEmpty() Method