関連ワード:  method overloading should have same return type    overloaded methods must have the same return type    can method overloading have same return type    can we have different return type in method overloading    is return type same in method overloading    can method overloading based return types    in method overloading return type is different    can we change return type in method overloading  
結果 : method overloading should have same return type