?? ranutils.java
字號:
package coreservlets;
/** "Business logic" for RandomNumberServlet MVC example.
* <p>
* From <a href="http://courses.coreservlets.com/Course-Materials/">the
* coreservlets.com tutorials on servlets, JSP, Struts, JSF, Ajax, GWT,
* Spring, Hibernate/JPA, and Java programming</a>.
*/
public class RanUtils {
public static NumberBean getRandomNum(String rangeString) {
double range;
try {
range = Double.parseDouble(rangeString);
} catch(Exception e) {
range = 10.0;
}
return(new NumberBean(Math.random() * range));
}
private RanUtils() {} // Non-instantiatable class
}
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