Java中set和get
public?class?HelloWorld?{ ??? ??? ???String?name;? ???String?sex; ???int?score; ???int?age; ????? ???public?String?getName()?{ return?name; } ???public?void?setName(String?name)?{ this.name?=?name; } ???public?String?getSex()?{ return?sex; } ???public?void?setSex(String?sex)?{ this.sex?=?sex; } ???public?int?getScore()?{ return?score; } ???public?void?setScore(int?score)?{ this.score?=?score; } ???public??int?getAge()?{ return?age; } ???public??void?setAge(int?age)?{ this.age?=?age; } public?static?void?main(String[]?args)?{ HelloWorld?hello?=?new?HelloWorld(); hello.setName("imooc"); ???????hello.setSex("Male"); ???????hello.setAge(10); ???????hello.setScore(98); ??????? ??????? ???????hello.getName(); ???????hello.getSex(); ???????hello.getAge(); ???????hello.getScore(); ??????? } }
請問一下我寫的代碼為什么不能輸出?
2017-01-02
因為你return返回的是一個值,并不是輸出一個值,所以你還要用輸出語句,即System.out.print();來輸出屬性的值。System.out.print(hello.getName()+hello.getSex()+hello.getAge()+hello.getScore());
2017-02-09
你的變量沒有用private修飾,不需要用get() , set()方法??!你沒有對面變量進行封裝,完全可以直接操作??!
2017-01-02
小伙 沒有輸出方法。
2017-01-02
System.out.println()都沒用,當然顯示不了