0_0_23032603_17720\Main.java:8: 错误: 需要class, interface或enum
public Main
^
0_0_23032603_17720\Main.java:10: 错误: 需要class, interface或enum
public static void main ( String[] args )
^
0_0_23032603_17720\Main.java:13: 错误: 需要class, interface或enum
while( in.hasNext() )
^
0_0_23032603_17720\Main.java:16: 错误: 需要class, interface或enum
x1 = in.nextDouble();
^
0_0_23032603_17720\Main.java:17: 错误: 需要class, interface或enum
y1 = in.nextDouble();
^
0_0_23032603_17720\Main.java:18: 错误: 需要class, interface或enum
x2 = in.nextDouble();
^
0_0_23032603_17720\Main.java:19: 错误: 需要class, interface或enum
y2 = in.nextDouble();
^
0_0_23032603_17720\Main.java:20: 错误: 需要class, interface或enum
double n = Math.pow( (x2-x1),2 );
^
0_0_23032603_17720\Main.java:21: 错误: 需要class, interface或enum
double m = Math.pow( (y2-y1),2 );
^
0_0_23032603_17720\Main.java:22: 错误: 需要class, interface或enum
n+=m;
^
0_0_23032603_17720\Main.java:23: 错误: 需要class, interface或enum
x1 = Math.sqrt( n );
^
0_0_23032603_17720\Main.java:25: 错误: 需要class, interface或enum
System.out.println( String.format("%.2f",x1));
^
0_0_23032603_17720\Main.java:26: 错误: 需要class, interface或enum
}
^
13 个错误
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