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Methods, Data and Data Types

Methods, Data and Data Types. Chapter 1-3. Wombat and leafs. Open up greenfoot WombatWorld scenario Lets reverse engineer Wombat class Lets look at methods and data of this class? How and where?. Java language syntax. Comments: You can add comments to your program to explain the code

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Methods, Data and Data Types

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  1. Methods, Data and Data Types Chapter 1-3

  2. Wombat and leafs • Open up greenfootWombatWorld scenario • Lets reverse engineer Wombat class • Lets look at methods and data of this class? How and where?

  3. Java language syntax • Comments: You can add comments to your program to explain the code // single line comment /* multiple line comment */ • Constructor is a special method that has the same name as the class; it has no return value

  4. Data Types • Whole numbers: represented by : int • Example: intnumStudents; • Real numbers, numbers with fractional components, floating point numbers:float, double • Example: floatbodyTemp; doublesizeOfAtom; doubledistanceToMars; • Logic variable that holds true or false values: boolean • Example: boolean raining; // true or false

  5. Wombat Class

  6. Leaf Class

  7. We will do the 10 things next class.

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