这是我的Rational课程:
package lab18f;
import static java.lang.System.*;
class Rational implements Comparable<Rational>
{
//add two instance variables
private int num, den;
//write two constructors
public Rational ()
{
num = 1;
den = 1;
}
public Rational (int numer, int deno)
{
num =
进口后:
import '@polymer/paper-dropdown-menu/paper-dropdown-menu.js';
import '@polymer/paper-listbox/paper-listbox.js';
import '@polymer/paper-item/paper-item.js';
下拉列表在单独放置时不会产生错误,但是当单击时(多次单击时会重复),则会产生错误。
Uncaught ReferenceError: KeyframeEffect is not defined
at HTMLElement
我已经做了一个可以加减分数的控制台应用程序,我已经添加了一个函数来简化:
public static Numbers Add(Numbers n1, Numbers n2)
{
int den1;
int num1;
int num2;
int dsimp;
int nsimp;
int numtop;
num1 = n1.Numerator * n2.Denominator;
num2 = n2.Numerator * n1.Denominator;