public void setProgramId(Integer programId) {
        this.programId = programId;
    }
Selects a specific program from within a multi-program transport stream. If the program doesn't exist, the first
program within the transport stream will be selected by default.

@param programId
       Selects a specific program from within a multi-program transport stream. If the program doesn't exist, the
       first program within the transport stream will be selected by default.
aws-java-sdk-medialive/src/main/java/com/amazonaws/services/medialive/model/VideoSelectorProgramId.java