View Compilation Error

0_0_37012276_1169\Main.java:4: 错误: 需要class, interface或enum
	public static void main(String[] args) {
	              ^
0_0_37012276_1169\Main.java:6: 错误: 需要class, interface或enum
		while(sc.hasNext()) {
		^
0_0_37012276_1169\Main.java:8: 错误: 需要class, interface或enum
			double v=4.0/3*3.1415927*r*r*r;
			^
0_0_37012276_1169\Main.java:9: 错误: 需要class, interface或enum
			System.out.printf("%.3f",v);
			^
0_0_37012276_1169\Main.java:10: 错误: 需要class, interface或enum
			System.out.println();
			^
0_0_37012276_1169\Main.java:11: 错误: 需要class, interface或enum
		}
		^
6 个错误