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 compile
public 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 successfully and it works:

public Report checkPlayer() {

  var player = new Player();
  var timestamp = new Date();
  var report = fetchReport(player, timestamp);

  return report;
}

public Report fetchReport(Player player, Date timestamp) {

  return new Report();
}