public void setLastModifiedDate(String lastModifiedDate) {
        this.lastModifiedDate = lastModifiedDate;
    }
<p>
The date, in ISO 8601 format, when the journey was last modified.
</p>

@param lastModifiedDate
       The date, in ISO 8601 format, when the journey was last modified.
aws-java-sdk-pinpoint/src/main/java/com/amazonaws/services/pinpoint/model/JourneyResponse.java