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Closed 10 years ago.

因此,我正试图正确而充分地 j笑这个法典的主体,但我很想知道,什么是做的,什么是做的。感谢!

public double largerRoot (double a, double b, double c) throws Exception
{
    double discriminant;
    double root1;
    double root2;

    discriminant = Math.sqrt ( b * b - 4 * a * c );

    if ((discriminant < 0) || (a == 0))
    {
        throw (new Exception("Math Error"));
    }

    root1 = (-b + discriminant) / (2 * a);
    root2 = (-b - discriminant) / (2 * a);

    return Math.max(root1, root2);
    }

Answer 1

页: 1 Alt + Shift + J

其他:gogle (

Answer 2

第一:我改称名词的b和c参数。

第二:方法/分类说明:总是在铭记“Why”的情况下撰写javadoc。我指的是,大多数发展中国家撰写了“javadoc”,解释《守则》做了什么......这是无助的,因为大多数方案者知道如何读《守则》。我总是试图描述这种分类或方法的原因,以及它应当达到什么目的(合同)。

Third: details about parameters is a must (null accepted or not, is there any range..etc)

Fourth: details about the return value.

第五:参考:......对于希望了解你在方法中使用某类避孕器的javadoc用户来说,可以有用。

希望会提供帮助。

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