输出全局变量测试

不是很明白？因为要求我们做的只是上面那个类，但是为了保证正确，所以我想运行来测试下，但又找不到方法

public String getCourseID()
{
return courseID;
}
public String getCourseName()
{
return courseName;
}
public String getCredit()
{
return credit;
}
加上这几个方法，然后调用了来测试.

也不行

public class Calculate
{
public static int fac(int n)
{
int sum=1;
for(int i=1;i<=n;i++)
{
sum=sum*i;
}
return sum;
}
public static void main(String args[])
{
int num=0;
for(int n=1;n<=10;n++)
{
num+=fac(n);
System.out.print(n+"!"+"+");
}
System.out.println("="+num);
}
}
你其中有好多错啊!!!1不过我的有个问题
打印出来多个+号.
你自己搞定.

class Course{
private String courseID = "";
private String courseName = "";
private String credit = "";

public Course(){
}
public Course(String courseID){
this.courseID = courseID;
}
public Course(String courseID,String courseName){
this(courseName);
this.courseID = courseID;

}
public Course(String courseID,String courseName,int credit){
this.courseID = courseID;
this.courseName = courseName;
this.credit = credit;
}
public void printcourse(){
System.out.println(courseID);
System.out.println(courseName);
System.out.println(credit);
}
}
public class CourseTest {
public static void main(String args[]){
Course ol=new Course();
Course o2=new Course("0537331165");
Course o3=new Course("0537331165","JAVA");
Course o4=new Course("0537331165","JAVA",4);
o1.printcourse();
o2.printcourse();
o3.printcourse();
o4.printcourse();


}

public class Calcul
{
public static int fac(int n)
{
int product0=1;
for (int i=1;i<=n;i++)
{
product0=product0*i;
}
return product0;
}
public static void main(String[] args)
{
int product=fac(10);
System.out.println("10!="+product);
}
}