我正在嘗試修復我寫的腳本：

import java.util.Scanner;

public class Line2

{

public static void main (String [] args)

{

Scanner scan = new Scanner (System.in);

System.out.println ("Please enter 4 integers");

int x1 = scan.nextInt();

int y1 = scan.nextInt();

int x2 = scan.nextInt ();

int y2 = scan.nextInt ();

double distance;

//Asking the user to insert coordinates of both points and setting double

// on distance in order to properly calculate the square root

distance = Math.sqrt((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1));

System.out.print( "the length of the line between the points" (int x1,int x2) "and" (int y1,int y2) "is" distance);

//Telling the program to calculate the distance of two points given by user

}//end of method main

}

我試圖讓x1 x2 y1和y2出現(xiàn)在里面,但它不允許我 – 給Y(有點)預期……

無論int是什么,我能做什么才能使它出現(xiàn)？ (除了那個程序運行得很好,我認為..)

謝謝

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