View Compilation Error

0_0_15377210_2610\Main.java:1: 错误: 需要class, interface或enum
public static void main(String[] args) {
              ^
0_0_15377210_2610\Main.java:4: 错误: 需要class, interface或enum
    While(s.hasNext());{
    ^
0_0_15377210_2610\Main.java:4: 错误: 需要class, interface或enum
    While(s.hasNext());{
                       ^
0_0_15377210_2610\Main.java:6: 错误: 需要class, interface或enum
    	x1=s.nextDouble();
    	^
0_0_15377210_2610\Main.java:7: 错误: 需要class, interface或enum
    	x2=s.nextDouble();
    	^
0_0_15377210_2610\Main.java:8: 错误: 需要class, interface或enum
    	y1=s.nextDouble();
    	^
0_0_15377210_2610\Main.java:9: 错误: 需要class, interface或enum
    	y2=s.nextDouble();
    	^
0_0_15377210_2610\Main.java:10: 错误: 需要class, interface或enum
    	Double s1=((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
    	^
0_0_15377210_2610\Main.java:11: 错误: 需要class, interface或enum
    	System.out.printf("%.2f/r/n",s1);
    	^
0_0_15377210_2610\Main.java:12: 错误: 需要class, interface或enum
    	s.close();
    	^
0_0_15377210_2610\Main.java:13: 错误: 需要class, interface或enum
    }
    ^
11 个错误