在returing object數組中出現意想不到的typer錯誤

Question

爲什麼我在嘗試返回對象數組時遇到第22行中的意外類型錯誤？

public class StudentDemo { 
public static void main(String args[]){ 

    StudentDemo program = new StudentDemo(); 
    program.start(); 
} 

public void start(){ 
    Student one = new Student(1, "x", 80.0); 
    Student two = new Student(2, "y", 81.0); 
    Student three = new Student(3,"z", 79.5); 
    Student four = new Student(4, "a", 85.0); 
    Student five = new Student(5, "b", 86.0); 
    Student arr[] = {one,two,three,four,five}; 
    Student[] splitarr = splitStudentArray(arr, char 'e'); //line 22 
    splitarr[0].getName(); 
} 

public Student[] splitStudentArray(Student arr[], char choice){ 

    Student[] splitArr = new Student[5]; 
    if(choice == 'e'){ 

     for(int i = 0; i<5; i++){ 
      if(arr[i].getMarks()%2 == 0){ 
       splitArr[i] = arr[i]; 
      } 
     } 
    } 

    else if(choice == 'o'){ 

     for(int i = 0; i<5; i++){ 
      if(arr[i].getMarks()%2 != 0){ 
       splitArr[i] = arr[i]; 
      } 
     } 
    } 

    return splitArr; 
} 
} 

錯誤說：

要求：價值發現：類。

請幫我找出錯誤及其發生的原因。

Answer 1

變化

Student[] splitarr = splitStudentArray(arr, char 'e'); 

到

Student[] splitarr = splitStudentArray(arr,'e'); 

調用方法時，您不指定變量的（在你的情況char）的類型。