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SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder 6/14/2018 SE1011 Week 2, Class 1 Today Lab 1 – Additional Assignment Working Ahead Primitives in Java SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder 6/14/2018 Operator Precedence Grouping: (<expression>) Unary Operators: +x -x (<type>) x Multiplication-level Binary Operators: x * y x / y x % y Addition-level Binary Operators x + y x - y Dean & Dean, 2nd Ed, Fig. 3.7, p. 84 SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

Operator Precedence + Casting Exercise 6/14/2018 Operator Precedence + Casting Exercise 2 * - 1 * + 4 SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

Operator Precedence + Casting Exercise 6/14/2018 Operator Precedence + Casting Exercise Evaluate the expressions: (2 + 3.0) / 4 + 1 SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

Operator Precedence + Casting Exercise 6/14/2018 Operator Precedence + Casting Exercise ((int) 5.0 + 1.0) / 4 SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

Operator Precedence + Casting Exercise 6/14/2018 Operator Precedence + Casting Exercise 5 / 4 5 % 4 SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

Operator Precedence + Casting Exercise 6/14/2018 Operator Precedence + Casting Exercise 0 / 4 0 % 4 SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

Operator Precedence + Casting Exercise 6/14/2018 Operator Precedence + Casting Exercise (int)(4.5 + 4.5) / 4.0 SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

Operator Precedence + Casting SE1011 6/14/2018 Operator Precedence + Casting 1.0 + 11 / 5 + 2.0f SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

Operator Precedence + Casting SE1011 6/14/2018 Operator Precedence + Casting 9L / 2 1.0f + 1.0 SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

Operator Precedence + Casting SE1011 6/14/2018 Operator Precedence + Casting 10 % 4 - 5 % 2 SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder 6/14/2018 Strings String name = "Josiah"; char initial = name.charAt(0); int length = name.length(); String start = name.substring(0, 2); String middle = name.substring(2,4); String end = name.substring(4,6); SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

Comparing primitive types SE1011 6/14/2018 Comparing primitive types x == 1 SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

Comparing references … and objects end == "ah" SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder

SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Compound Assignment x = x + 1 x = x * 2 x = x / 2 x = x % 2 SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder

SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder https://www.polleverywhere.com/free_text_polls/5ecaTmFuFeJ65hY 6/14/2018 SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder

SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder 6/14/2018 Acknowledgement This course is based on the text Introduction to Programming with Java by Dean & Dean, 2nd Edition SE-1011 Slide design: Dr. Mark L. Hornick Instructor: Dr. Yoder Dr. Josiah Yoder