I've got 40 years C experience, mostly with device drivers and OS internals (helped port Linux to the SH-4 back in 2000). I retired a few years back (thank you Qualcomm), and learned Java to scratch ...

Overview:  JavaScript and Node.js remain among the most sought-after skills for software developers, making technical interview preparation more important ...

Every programming language comes with a learning curve, but Java shares many similarities with C, C++ and JavaScript. Anyone with experience in any of those languages will pick up Java syntax quickly.