标识符期望错误 [英] Identifer expect error

问题描述

我在编译程序时遇到问题。我收到来自我的数组的标识符错误。

I am having a problem getting my program to compile. I recieve the identifier error coming from my array.

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推荐答案

你没有'没有命名你的StudentList数组。真是常见的错误;我一直这样做。

You haven''t named your StudentList array. Really common mistake; I do it all the time.

当我命名时：


private StudentList [] sList = new StudentList [20];


我得到13个错误而不是我遇到的一个错误：


GradeCalculator.java:13：找不到符号

符号：class StudentList

location：class GradeCalculator

private StudentList [] sList = new StudentList [20];

^

GradeCalculator.java:13：找不到符号

符号：class StudentList

location：class GradeCalculator

private StudentList [] sList = new StudentList [20];

^

GradeCalculator.java:143：int无法解除引用

gradeCalc.StudentList [s] = new Student（）;

^

GradeCalculator.java:143：找不到符号

符号：class学生

位置：class GradeCalculator

gradeCalc.StudentList [s] = new Student（）;

^

GradeCalculator.java:145：int无法解除引用

gradeCalc.noOfStudents =

^

GradeCalculator.java:147：int无法解除引用

gradeCalc.score =

^

GradeCalculator.java:150 ：int无法解除引用

gradeCalc.getStudentData（inFile）;

^

GradeCalculator.java:151：int无法解除引用

gradeCalc.displayGradeAverage（0）;

^

GradeCalculator.java:187：找不到符号

符号：变量studentList

位置：class GradeCalculator

boolean classAvg = studentList [（int）（totalScore / noOfStudents）]。getClassAverage（）;

^

GradeCalculator.java:188：找不到符号

符号：变量StudentList

位置：class GradeCalculator

stNameTF.setText（StudentList [stName] .getFirstName（）+""

^

GradeCalculator.java:189：找不到符号

符号：变量studentList

位置：class GradeCalculator

+ studentList [stName] .getLastName（））;

^

GradeCalculator.java:190：找不到符号

符号：变量StudentList

位置：class GradeCalculator

stAvgTA.setText（"" +&StudentList [（int）（totalScore / 5.0）]。getStudentAverage（））;

^

GradeCalculator.java:191 ：找不到符号

符号：变量StudentList

位置：class GradeCalculator
classAvgTA.setText（"" + StudentList [（int）（totalScore / noOfStudents）]。getClassAverage（））; }

^

13个错误

when i name it:

private StudentList[] sList= new StudentList [20];

I get 13 errors instead of the one error i am having:

GradeCalculator.java:13: cannot find symbol
symbol : class StudentList
location: class GradeCalculator
private StudentList[] sList = new StudentList[20];
^
GradeCalculator.java:13: cannot find symbol
symbol : class StudentList
location: class GradeCalculator
private StudentList[] sList = new StudentList[20];
^
GradeCalculator.java:143: int cannot be dereferenced
gradeCalc.StudentList[s] = new Student();
^
GradeCalculator.java:143: cannot find symbol
symbol : class Student
location: class GradeCalculator
gradeCalc.StudentList[s] = new Student();
^
GradeCalculator.java:145: int cannot be dereferenced
gradeCalc.noOfStudents =
^
GradeCalculator.java:147: int cannot be dereferenced
gradeCalc.score =
^
GradeCalculator.java:150: int cannot be dereferenced
gradeCalc.getStudentData(inFile);
^
GradeCalculator.java:151: int cannot be dereferenced
gradeCalc.displayGradeAverage(0);
^
GradeCalculator.java:187: cannot find symbol
symbol : variable studentList
location: class GradeCalculator
boolean classAvg = studentList[(int) (totalScore / noOfStudents)].getClassAverage();
^
GradeCalculator.java:188: cannot find symbol
symbol : variable StudentList
location: class GradeCalculator
stNameTF.setText(StudentList[stName].getFirstName() + " "
^
GradeCalculator.java:189: cannot find symbol
symbol : variable studentList
location: class GradeCalculator
+ studentList[stName].getLastName());
^
GradeCalculator.java:190: cannot find symbol
symbol : variable StudentList
location: class GradeCalculator
stAvgTA.setText(""+StudentList[(int) (totalScore / 5.0)].getStudentAverage());
^
GradeCalculator.java:191: cannot find symbol
symbol : variable StudentList
location: class GradeCalculator
classAvgTA.setText(""+StudentList[(int) (totalScore / noOfStudents)].getClassAverage()); }
^
13 errors

所以这应该是一个整数数组？例如

private int StudentList [] = new int [20];

或者是一组学生？

私人学生StudentList [] =新学生[20];

So this is supposed to be an integer array? eg
private int StudentList [] = new int [20];
or is it an array of students?
private Student StudentList[] = new Student[20];

这篇关于标识符期望错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！