Design a 4-bit binary up-counter using JK flip-flops. Follow steps 1 through 4. (sorry if the image is confusing but that's what it should say and I need help here since I don't know how to do it)

1. Determine the number of flip flop 2. Construct the state diagram and circuit excitation table 3. Obtain simplified equation using k-map 4. Draw the logic diagram 5. Follow the steps 1 through 5 to design a 4-bit binary up counter using JK flip flop