City Hall is preparing to launch a junior firefighter program and a junior police cadet program later this year in an effort to attract, train and keep city residents as cops and firefighters. Mayor Ben Walsh will announce the new programs in his State of the City address Thursday at 7 p.m. at the Salt City Market. In an interview Wednesday, Walsh said the programs address two top priorities for the city’s public safety forces: ensuring diversity among the ranks and encouraging residency for cops and firefighters. “What better way to achieve both of those goals than to create pathways for young people who grow up in the city that are already a part of the city to make their way into these departments?” Walsh said. The programs will be housed within the Public Service Leadership Academy at Fowler High School.