For the second year in a row, the 6-foot-5, 190-pound small forward has made the USA Team and will compete for a gold medal in Lithuania in the coming weeks.
Making the team is a testament to the constant growth in the 2014 forward's game and is something that he doesn't take for granted.
"It feels great," Johnson said. "It's my second year back so it's harder coming back again because everyone wants your spot and they know what you do well.
"I'm glad that I can be on the team again and go to the Canary Islands and Lithuania to do my thing and bring my country a gold medal."
From the eye test, Johnson has improved his jump shot and really has improved his range. He admits that he has improved and attributes that to hard work.
"From mid-range and all three levels," he explained. "I get a lot of shots up every day and work out with a lot of ball handling. [I'm still] working on my perimeter game to become a perimeter player and try to use my physical ability to make that happen."
The four-star prospect from Santa Ana (Calif.) Mater Dei has seen his recruitment really take off and has even made decision on when he will finally take an unofficial visit to Tucson. He has never been on a visit and is really looking forward to seeing what Arizona has to offer.
"I've never been there, but I am going there August 6," said Johnson. "I originally scheduled it in June, but couldn't go because I'm obviously doing this, so I changed it to August 6 because that will be the best. [Sean Miller] wanted me to come when all the freshmen were there and see how that went."
Johnson currently holds an offer from Arizona and the Wildcats were one of the first schools to contact him on June 15.
"The first school was San Diego State and they offered," said Johnson. "I talked to Arizona right after that then Syracuse, Colorado, Washington, and Missouri.
"Now it's more evident who really is recruiting me the hardest. Mostly the Pac-12 and some east coast schools, but some of the hardest schools coming at me right now are from the Pac-12 like USC, Arizona and UCLA because they are closer to me. They have been recruiting me since my eighth grade year because they are closer to me."
Johnson has a good amount of interest in Arizona and a lot of that has to do with his familiarity with the school, the people, and close proximity to the school. Sean Miller remains in contact with Johnson and it is something that he is very comfortable with.
"I have a lot of people over there," said Johnson. "I know a lot of the kids and I talk to them. I talk to Sean Miller and he's just a straight up guy. From the first time I talked to him I knew he was one of the straight up guys.
"I knew he wasn't going to give me the run around. That honesty I feel in his voice is very strong and that is to my liking."
Despite the familiarity of some of the west coast schools, don't expect a quick decision from Johnson, who says he wants to wait and let as many schools as possible into his recruitment.
"I kind of want to wait and give everyone a chance," explained Johnson. "Maybe I can wait and see if some of the big schools come in and put their word in. I don't want to make an early decision and then miss my opportunity."