How do I remove the first and last item from LinkedList?
Category: java.util, viewed: 590 time(s).
To remove the first or the last elements from the linked list we can use the removeFirst() and removeLast() methods provided by the LinkedList class.
package org.kodejava.example.swing;
import java.util.LinkedList;
public class LinkedListRemoveItems {
public static void main(String[] args) {
LinkedList<String> grades = new LinkedList<String>();
grades.add("A");
grades.add("B");
grades.add("C");
grades.add("D");
grades.add("E");
grades.add("F");
System.out.println("Original values are:");
System.out.println("====================");
for (String grade : grades) {
System.out.println("Grade: " + grade);
}
grades.removeFirst();
grades.removeLast();
System.out.println("New values are:");
System.out.println("====================");
for (String grade : grades) {
System.out.println("Grade: " + grade);
}
}
}
This program print out the following result:
Original values are:
====================
Grade: A
Grade: B
Grade: C
Grade: D
Grade: E
Grade: F
New values are:
====================
Grade: B
Grade: C
Grade: D
Grade: E
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