Dr Java;爲什麼不編譯？

Question

我想知道爲什麼我的程序無法在Java博士上正確編譯。我的代碼有問題嗎？

實踐測試＃1

import java.util.Scanner; 

public class practest1 { 

    public static void main(String[] args) { 
     Scanner sc = new Scanner(System.in); //reads keyboard input 
     System.out.println("please input a string, float or integer"); //asks the user to input into the text field. 

     String twine; //names string with variable name of "twine". 
     float wood; //names float with variable name of "wood". 
     int maths; //names int with the variable name of "maths". 


     System.out.println("Please type a string (please input words"); //asks the user to input a sting. 
          twine = sc.nextLine(); // links twine to the entered input 
          System.out.println("Thanks for entering a string" + twine); //displays twine on the screen to siqnify what the user entered 


     System.out.println("Please type a float (please input decimal point number"); //asks the user to input a decimal point number. 
          wood = sc.nextFloat(); // links wood to the entered input 
          System.out.println("Thanks for entering a float" + wood); //displays wood on the screen to siqnify what the user entered 



     System.out.println("Please type a int (please input a number"); //asks the user to input a number. 
          maths = sc.nextInt(); // links maths to the entered input 
          System.out.println("Thanks for entering some integer" + maths); //displays maths on the screen to siqnify what the user entered 

    } 
} 

Answer 1

正如在評論中表示，我認爲它編譯。請確保您的文件名與課程名稱相同！