View Compilation Error

0_0_5944094_17006\Main.java:7: cannot find symbol
symbol  : class UnsupportedEncodingException
location: class Main
	public static void main(String[] args) throws UnsupportedEncodingException {
	                                              ^
0_0_5944094_17006\Main.java:9: cannot find symbol
symbol  : class Scanner
location: class Main
		Scanner sc=new Scanner(System.in);
		^
0_0_5944094_17006\Main.java:9: cannot find symbol
symbol  : class Scanner
location: class Main
		Scanner sc=new Scanner(System.in);
		               ^
3 errors