In the current world which programing language is best to learn Java or .Net?
Any online free source to learn Java or .Net ?
Java is all time best language.
Java and .NET both are leading technologies used for development of desktop and the server-side application. The main difference between both is that Java can work on any platform but .NET works only on the various version of windows. For more details, you can check this link: Java vs .NET: Factors to Consider – codeburst
For Java online tutorials you can refer: Java Programming Language - GeeksforGeeks