Computer Science 1026A/B Chapter Notes -Signify, Integrated Development Environment, Concatenation

• School: Western University
• Department: Computer Science
• Course: Computer Science 1026A/B
• Professor: Brian Langen

Document Summary

Topic 2: introduction to java and dr java. Dr java is an integrated development environment (ide) for java programming: writing the code, compiling, running, debugging can be done in this one program. Dr java has several panes: definition pane: used for creating (tying in and editing) complete java programs. Interaction pane: used for testing of specific code without having to compile; unique to dr java: files pane: all currently open and used classes are listed here. To try out dr java, we will begin with simple math: evaluating arithmetic expressions. Arithmetic expressions consists of operands (values) and operators and represent a numeric value: addition: , subtraction: , multiplication: , division: , negation: , modulo: % (remainder after integer division. The computer cannot reason or think and jump ahead. Every value has a type associated with it, which tells how the computer to interpret values. Used to store simple data values, such as integers, floating points, characters, and booleans.