View Compilation Error

0_0_37012317_32605\Main.java:1: 错误: 需要class, interface或enum
public static void main(String[] args) {
              ^
0_0_37012317_32605\Main.java:3: 错误: 需要class, interface或enum
			while(sc.hasNext()) {
			^
0_0_37012317_32605\Main.java:5: 错误: 需要class, interface或enum
				double v = 4.0 / 3 * 3.1415927 * r * r * r;
				^
0_0_37012317_32605\Main.java:6: 错误: 需要class, interface或enum
				System.out.printf("%.3f",v);
				^
0_0_37012317_32605\Main.java:7: 错误: 需要class, interface或enum
				System.out.println();
				^
0_0_37012317_32605\Main.java:8: 错误: 需要class, interface或enum
			}
			^
6 个错误