Simple java exercises
[DOC File]Lecture 2 Exercises – Robocode Practical
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Exercises. Using just the . ahead. and . turnRight / turnLeft. methods create a robot that travels in a complete square once, beginning from its starting position. Make the robot travel 150 units for each side of the square. Using a . for. loop create a robot that travels in a complete square 10 times.
[DOC File]Exercises:
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The third print statement does not compile, because Java can not apply the minus operator to a string and 2.0. This code is in Fragments.java. 7. Write some Java statements that use the String methods indexOf and substring to find the first word in a string. We define word to be a string of characters that does not include whitespace.
[DOC File]Exercises: - SIUE
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Exercises: 1. Consider a program that will keep track of the items in a school’s library. ... This project is a simple variation of Project 1. ... Square.java is derived from Rectangle, so it is just a matter of using the parent’s methods with both height and width set to the length …
[DOC File]Exercises: - SIUE
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Exercises: 1. Write a program in a class NumberAboveAverage that counts the number of days that the temperature is above average. ... Solution: See the code in NumberAboveAverage.java. 2. Write a program in a class CountFamiles that counts the number of families whose income is below a certain value. ... Playing around with some simple examples ...
[DOC File]Lecture 3 Exercises – Writing Applications
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Exercises Write a simple application that when run simply writes out “Hello World” to the console. Write a simple application that loops through the array containing its command-line parameters, writing each of them to the console (Tip: check the javadoc for java.lang.String):
[DOC File]Lecture 8 Exercises – Working with Frames and Panels
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Part 2 – Building a simple calculator GUI. In this exercise we’re going to build a simple user interface for a calculator. The interface will consist of a JFrame (the calculators window), a JTextArea (for entering data) and a custom component called the CalculatorButtonPanel that …
[DOC File]Lecture 3 Exercises – Writing Applications
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The implementation of the Movement class is very simple. It should simply store the values passed into its constructor in some private attributes. These values should be returned when the appropriate “get” method is called. The values for the direction attribute must be one of the constants (e.g. FORWARD) defined by the class.
[DOC File]Chapter 2 – Lab Exercises
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File Simple.java contains a simple Java program that prints a message. The identifier that represents the name of this program is Simple, but we could have chosen a different identifier subject to certain rules and conventions.
[DOC File]Exercises: - SIUE
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This project is a simple modification of Project 10 from Chapter 2. Three if statements are added to detect invalid input: less than 25 cents, more than a dollar, and not a multiple of 5 cents. References: Project 2.10. Solution: See the code in VendingChangeImproved.java. 13.
[DOC File]Leigh Dodds
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Exercises. Firstly, create and compile a simple class called Parent. Give it the following behaviour: A default constructor that does nothing other than print out “Parent default constructor” using System.out A single method called getMessage which returns a String, e.g. “Parent message” Next, create and compile a class called Child.
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