Java編譯錯誤，找不到符號

Question

獲取錯誤「不能Fin符號」，但我不知道我做錯了什麼。

import java.util.Scanner; 

public class Exercise6_1{ 

    public static void main(String[] args){ 
     Scanner input = new Scanner(System.in); 
     System.out.print("Enter number of students: "); 
     int numberStudents = input.nextInt(); 
     int[] studentScores = new int[numberStudents]; 
     System.out.print("Enter " + numberStudents + " Scores: "); 
     for (int i = 0; i < numberStudents; i++);{ 
      studentScores[i] = input.nextInt(); 
     } 
    } 
} 

Answer 1

「for」循環後面有分號。

應該是這樣的：

for (int i = 0; i < numberStudents; i++) { 
    studentScores[i] = input.nextInt(); 
} 

Answer 2

你有一個;在for循環之後。

正確IMPL： -

import java.util.Scanner; 

public class Test { 
    public static void main(String[] args) { 
     Scanner input = new Scanner(System.in); 
     System.out.print("Enter number of students: "); 
     int numberStudents = input.nextInt(); 
     int[] studentScores = new int[numberStudents]; 
     System.out.print("Enter " + numberStudents + " Scores: "); 
     for (int i = 0; i < numberStudents; i++) 
     { 
      studentScores[i] = input.nextInt(); 
     } 
    } 
} 

Answer 3

在該行

for (int i = 0; i < numberStudents; i++);{ 

最後一個分號應刪除：

for (int i = 0; i < numberStudents; i++) { 

Answer 4

for (int i = 0; i < numberStudents; i++);{ 
     studentScores[i] = input.nextInt(); 
    } 

在這裏，你已經結束了對循環用一個分號，導致該點處的循環終止。這就是爲什麼它顯示它找不到符號我，因爲它超出了for循環的範圍。