Documentation
If you are new to these languages, you can use online examples or built-in VHDL or Verilog templates to get you started which are discussed in theQuartus® Prime Pro Edition Used Guide: Design Recommendations
The Quartus® Prime Pro Edition software offers Verilog and VHDL templates of frequently used structures. For more information on using these template, refer to the "Using Provided HDL Templates" section of the Quartus® Prime Pro Edition Handbook.
The Quartus® Prime design software also comes with High Level Synthesis Compiler which synthesizes a C++ function into an RTL implementation that is optimized for FPGA products.