PPT Slide

Calling (or Invoking) Methods

1. Invocation must be unambiguous re: which object or class the method is to act upon.

2. If the method call appears inside a class, then that class is presumed to contain the appropriate method:

class CompanyStock {

public double getAmountEarned ( ) {

double dOpen = getOpenValue();

/* calls method in this class */

double dClose = getCloseValue();

/* calls method in this class */

. . .//etc. etc.

} // of getAmountEarned

public double getOpenValue() {

return 1234.5d;

}

public double getCloseValue(){

return 2345.6d;

}

} // of CompanyStock