Discussion 1: Intro to Java Christine Zhou Agenda Introductions & About Me Announcements Git Worksheet! Introductions & About Me Christine, 3rd year Email: cazhou@berkeley.edu Feel free to email me! Always available to chat one-on-one What is your name, year, major? Announcements Lab1 is due tonight at 11:59PM. HW0 is due this Friday at 11:59PM. Office hours and discussion/lab calendars on the course website. Discussion survey: shoutkey.com/leak Git VCS (version-control system), can save your work and go back to previous versions very easily You have a central repository living somewhere stored by git You can use ‘git clone’ to get a copy of this central repository anywhere you want (ie. on your local computer and instructional account) When you ‘git add X.java’, ‘git commit -m “...”’, and ‘git push’, you are sending your work to the central repository Not to other copies of the repository! Some Git Commands to Know Camera analogy git add: take a snapshot of your files (this is called staging your changes) git commit: save the snapshot that you took with a message git push: pushes snapshots from your repo to the central repo git pull: pulls snapshots from the central repo to your repo git status: shows the status of your repo git log: shows all the snapshots/corresponding messages you’ve made on your repo git tag: mark a specific snapshot with a tag 1. Javaian Rhapsody Variable assignments, to different types (String, int, Singer) String and int are provided in Java, Singer is a self-defined class! 1. Javaian Rhapsody (continued) While loops will continue as long as the condition is true Condition in this case is x>0 Possible to loop infinitely if the condition is always true Maybe we forget to decrement x? 1. Javaian Rhapsody (continued) Create arrays in Java with the bracket notation, can access with indexing For loops: for (instantiation; condition; incrementation) Will do what is within the brackets

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