Java Coding Problems

92. LVTI and the method return and argument types

As a rule of thumb, LVTI cannot be used as a return method type or as an argument method type; instead, variables of the var type can be passed as method arguments or store a return method. Let's iterate these statements via several examples:

• LVTI cannot be used as the method return type—the following code doesn't compile:

// Does not compilepublic var fetchReport(Player player, Date timestamp) {  return new Report();}

• LVTI cannot be used as a method argument type—the following code doesn't compile:

public Report fetchReport(var player, var timestamp) {  return new Report();}

• Variables of the var type can be passed as method arguments or store a return method—the following code compiles ...