The 19-year-old will link up with his national side as the Three Lions take part in Group E, and he believes his experience against other countries will help him at club level
The 19-year-old was named the club’s Young Player of the Year last week after making seven appearances for Everton this season, following loan spells at Sheffield Wednesday and Leeds United.
And Barkley, who will link up with the England squad for this summer’s Under-20 tournament, believes the award will serve him well when he looks to break into the Toffees first-team.
"Things like the award give me real hope of becoming a first-team regular and I'm thinking about next season already," he told the club's official website.
"I've got the Under-20 World Cup coming up, so I haven't really got a summer but I'll be ready for the pre-season, for the new manager and hopefully I'll impress him."
Everton have yet to replace outgoing manager David Moyes, who has agreed to succeed Sir Alex Ferguson at Manchester United.
And Barkley insists that whoever takes over from Moyes as manager will be able to call upon him after the experience of playing in an international tournament.
He added: "Playing against different countries from all over the world will be good for me. It should be a good experience."