Basic Java Language: Difference between revisions
wikademia>Mirwin m →Statements: edit phrasing a little add a little |
wikademia>Mirwin m →Statements: fix formatting |
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A statement in Java is a chunk of code that does something specific completely. Statements are ended by a semicolon ;. An example of a statement is the declaration of a variable like we saw before. | A statement in Java is a chunk of code that does something specific completely. Statements are ended by a semicolon ;. An example of a statement is the declaration of a variable like we saw before. | ||
private int static numberOfObjectsInstantiated; | <pre>private int static numberOfObjectsInstantiated;</pre> | ||
The above declares a single memory location per class which may be incremented each time an object of that class is instantiated by calling its constructor method. | The above declares a single memory location per class which may be incremented each time an object of that class is instantiated by calling its constructor method. | ||
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A third example | A third example | ||
if ( | <pre>if (ourShip.speed<10) then ourShip.mainThrustPulse(2);</pre> | ||
The above checks a ship object's speed and if it is less than ten then it commands the ship object to fire two pulses from its main propulsion rockets. It is a single specific application task completed at the semi-colon when it moves to the next chunk of code. | The above checks a ship object's speed and if it is less than ten then it commands the ship object to fire two pulses from its main propulsion rockets. It is a single specific application task completed at the semi-colon when it moves to the next chunk of code. | ||