completed to practice1 of section 2.01
completed to practice2 of section 2.01
completed to RelativeLayoutPractice1 of section 2.01
completed to RelativeLayoutPractice2 of section 2.01
completed to FrameLayoutPractice2 of section 2.01
completed to Assignment2 of section 2.01
completed to Assignment3 of section 2.01