View Compilation Error

0_0_34554405_20609\Main.java:1: 错误: 需要class, interface或enum
public static void main(String[] args) {
              ^
0_0_34554405_20609\Main.java:3: 错误: 需要class, interface或enum
		while (sc.hasNext()){
		^
0_0_34554405_20609\Main.java:5: 错误: 需要class, interface或enum
			if(t>100||t<0){
			^
0_0_34554405_20609\Main.java:7: 错误: 需要class, interface或enum
			}else if(t>=90){
			^
0_0_34554405_20609\Main.java:9: 错误: 需要class, interface或enum
			}else if(t>=80){
			^
0_0_34554405_20609\Main.java:11: 错误: 需要class, interface或enum
			}else if(t>=70){
			^
0_0_34554405_20609\Main.java:13: 错误: 需要class, interface或enum
			}else if(t>=60){
			^
0_0_34554405_20609\Main.java:15: 错误: 需要class, interface或enum
			}else {
			^
0_0_34554405_20609\Main.java:17: 错误: 需要class, interface或enum
			}
			^
9 个错误