这是在我的机子上的结果:
C:\cs>javac GPA.javaC:\cs>java GPA
Student Name: TIGER TIGER
Studnet Number: 1
GPA = 0.0
Warning, you may be failing.
Student Name: PIGGY PIGGY
Studnet Number: 1
GPA = 0.0
Warning, you may be failing.
*** End of processing ***再仔细看看
C:\cs>javac GPA.javaC:\cs>java GPA
Student Name: TIGER TIGER
Studnet Number: 1
GPA = 0.0
Warning, you may be failing.
Student Name: PIGGY PIGGY
Studnet Number: 1
GPA = 0.0
Warning, you may be failing.
*** End of processing ***再仔细看看
输入,99 ,98, 60,当然没有GPA值了
你可以在while (doAskGrade)之前加上个doAskGrade = true;试试
while (doAskStudNum){
//inicialize
firstName = ""; lastName = ""; gradeReader =""; stringInput="";
gradeTotal = 0.0;numberGrades = 0;doAskGrade=true;以下是运行的结果:
C:\cs>java GPA
4.0
Student Name: a a
Studnet Number: 1
GPA = 4.0
Congratulations, you're an Honours student!
3.0
Student Name: B B
Studnet Number: 2
GPA = 3.0
Congratulations, you're an Honours student!
2.0
Student Name: C C
Studnet Number: 3
GPA = 2.0
*** End of processing ***
这样在new 一个student的时候就自己初始化好了。数据结构也会比较清晰。