81. JK Flip-Flop

How do you plan to solve it?

/*module jk_ff (
    input  CLK,
    input  J,
    input  K,
    output reg Q
);
always @(posedge CLK) begin 
   if (J==0 && K==0) Q <= Q;
   else if (J==0 && K==1) Q <= 0;
   else if (J==1 && K==0) Q <= 1;
   else  Q <= ~Q;
end 

endmodule*/ 

module jk_ff (
    input  CLK,
    input  J,
    input  K,
    output reg Q
);
    always @(posedge CLK) begin
        case ({J, K})
            2'b00: Q <= Q;       // hold
            2'b01: Q <= 1'b0;    // reset
            2'b10: Q <= 1'b1;    // set
            2'b11: Q <= ~Q;      // toggle
        endcase
    end
endmodule