Web Development2014.07.16 15:01
Database/MS SQL Server2014.07.15 14:11




SQL Server를 무료로 사용할 때 참고해야할 제약기능과 기타 등등의 자료입니다.

SQL Server Express는 무료인가?

http://microsoft.softinfo.co.kr/bbs/board.php?bo_table=microsoftqa&wr_id=273

 

MSSQL 2005 Express 에디션의 제약 조건

http://ncanis.tistory.com/175

 

SQL Server 2012 에 포함된 LocalDB 기능 소개

http://www.sysnet.pe.kr/Default.aspx?mode=2&sub=0&detail=1&wid=1258

 

 

 

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Posted by 금붕어70
Java2014.07.09 20:39




http://stackoverflow.com/questions/8422842/in-java-syntax-class-extends-something

There are a few confusing answers here so I will try and clear this up. You define a generic as such:

public class Foo<T> {
    private T t;
    public void setValue(T t) {
        this.t = t;
    }
    public T getValue() {
        return t;
    }
}

If you want a generic on Foo to always extend a class Bar you would declare it as such:

public class Foo<T extends Bar> {
    private T t;
    public void setValue(T t) {
        this.t = t;
    }
    public T getValue() {
        return t;
    }
}

The ? is used when you declare a variable.

Foo<? extends Bar>foo = getFoo();

OR

DoSomething(List<? extends Bar> listOfBarObjects) {
    //internals
}
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Posted by 금붕어70

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