yes i believe that it should not pose you any problems.
Students of the CISCE Board(including myself) have JAVA right in their 9th class.
Believe me that the level is at par with the syllabus of the Engineering students(including myself).
It will definitely have an upper hand if you are aware of C++ before learning JAVA.
My personal Experience :
I was told that you cannot learn C++ without knowing C. Most C++ books also say this.
But I studied C++(for the first time in my ISCE 11-12th) & came out as the "North India Topper in Computer Science Programming with C++" in Board Exams March,2006.
Today was my C++(Object Oriented Programming Methods) [HP University] Exam in the morning & I am very proud that I had already studied 90% in my school at the St. Edwards School, Shimla.
