In order to run a java file using NodeJS we can use inbuilt child-process NodeJS module.

In child-process module a separate thread is created as child thread to run this program. child-process module has various functions and execSync is one of the function which executes a given command synchronously.

If your java program needs and input then you can create a text file and provide path of that text file to exec command and input will be taken from there. This works amazingly with any other languages such as c, c++, and python too. you just need to know commands to run a specific language.

Hope you learned something new from my blog , share it with your fellow devs. And do check out my GitHub for amazing projects.