Java error messages be like: "I notice you've attempted to instantiate an abstract class on line 437. Perhaps you meant to implement the interface? Would you like me to suggest some solutions? Here's a detailed stack trace with line numbers and helpful documentation links."
Meanwhile in C++: "Segmentation fault (core dumped)" - and that's it. No explanation, no line number, just pure existential dread as you wonder which of your 47 pointer operations caused the entire program to implode. Good luck, memory warrior!