JAVA PROGRAM • LEVEL 17 — DATA STRUCTURES & ALGORITHMS IN JAVA
Build a Singly Linked List in Java
Learn build a singly linked list in java with a complete, compiler-ready Java 17 example.
PROBLEM UNDERSTANDING
Input and expected output
No input required
10 20 30
COMPLETE JAVA 17 PROGRAM
Complete Java 17 implementation
class Node{int value;Node next;Node(int value){this.value=value;}}class Main{public static void main(String[] args){Node head=new Node(10);head.next=new Node(20);head.next.next=new Node(30);for(Node current=head;current!=null;current=current.next)System.out.print(current.value+" ");}}CURRENT STEP
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SELECTED LINE
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EXPECTED OUTPUT FOR THE SAMPLE
10 20 30
PROGRAM EXPLANATION
Algorithm and explanation
- Initialize the deterministic sample values used for build a singly linked list in java.
- Create the required object and apply Node and Linked list to its state or behavior.
- Print the final result and compare it with the documented sample output.
This Java 17 example demonstrates Node and Linked list through a complete, executable program. The values are intentionally small so students can trace each statement, verify the output, and then modify the example safely in the online compiler.
EFFICIENCY
Time and space complexity
O(n)
O(n)
DEBUGGING CHECKLIST
Common mistakes
Keep the class name Main and the entry method signature public static void main(String[] args) when using the online compiler.
Create an object before accessing instance members; static members can be accessed through the class name.
Java is case-sensitive, and every statement that requires a semicolon must end with one.