YEAR 12 COMPUTER SCIENCE

BRIDGING WORK

It is expected that you would have completed all the tasks on this PowerPoint in time for the first week back at school.

Learning Outcomes In preparation for A level course it is expected that you will develop skills necessary to introduce you to the java programming environment as well as develop your skills in writing algorithms.

Java

Java Java is one of the older programming languages developed by developed by Sun Microsystems and released in 1995. Java runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX. We will begin by completing a range of tutorials on codecademy in order to gain some experience in the java programming language.

Task 1 Click on the link below, ensure that you are using google chrome. Complete tutorials 1-12 https://www.codecademy.com/learn/learn-java Obviously this is just an introduction. You will need much more practice to develop the skills that you need to develop a complete program for your programming project. Task 2 Go through these tutorials for extra practice. This tutorial gives a more detailed understanding of Java. http://www.tutorialspoint.com/java/

Task 2 Create a 6 slide presentation on the key skills that you have learnt in the tutorial. Demonstrate your learning by showing programs that you have created. Explain key terms. Explain the benefit of Java and discuss how it is different from python. What are the similarities?

Challenge Challenge yourself by downloading a compiler like blueJ or net Beans to get a more practical understanding of what the environment looks like and how to write programs in it. You should use it to create a few simple programs.

Algorithms

Task 3 In this task you will practice writing algorithms (pseudocode) correctly. There are 10 algorithm questions. You must answer all questions. Save all your algorithms on one document which you should hand in to your teacher on the first lesson back. You must be able to explain your algorithms to your teacher. If it is obvious that you did not create the algorithms yourself you will be asked to re-do them.

1. 2.

3. 4.

5. What are the values of the following expressions, assuming that n is 17 and m is 18?   6. What are the values of the following expressions? In each line assume that s= “hello” t= “world”

7. Write an algorithm that prompts the user for two integers and then prints The sum The difference The average The product The maximum (the larger of the two) The minimum (the smaller of the two) 8. 9.

10.

What should you hand it? You need to hand in a PowerPoint and A word document with your algorithms