Node.js vs Java

Index	Node.js	Java
1.	Node.js is single-threaded.	Java is multi-threaded
2.	It has asynchronous I/O.	It has synchronous I/O.
3.	Node.js is faster than Java because of its asynchronous and non-blocking nature.	Java is synchronous in nature so it is slower than Node.js.

Node.js advantages over Java

Following is a list of some important points that makes Node.js superior to Java:

Node.js shows extremely good performance. It is almost 20% faster than Java.
Node.js has active and vibrant community, with lots of code shared via github, etc.
Node.js has growing number of good npm libraries.
Node.js has an asynchronous IO which is the future for concurrency and scalability.
Node.js cuts down the overall processing time while uploading audio and video files. Node.js applications never buffer any data. So it is preferred for video uploading.
A web server written in Node.js will be faster than apache.

Following is a list of some important points where Java leads:

Java has a rock-solid foundation with over 20 years of existence. So it is more reliable and widely used.
Java developers have Eclipse, NetBeans, or IntelliJ, three top-notch tools that are well-integrated with debuggers, decompilers, and servers.
Java facilitates remote debugging.