@@ -0,0 +1,1175 @@
+import java.util.Hashtable;%0A%0Apublic class Solution %7B%0A    public int titleToNumber(String s) %7B%0A        int num = 0;%0A        %0A        Hashtable%3CString, Integer%3E tb = new Hashtable%3CString, Integer%3E();%0A        %0A        tb.put(%22A%22, 1);%0A        tb.put(%22B%22, 2);%0A        tb.put(%22C%22, 3);%0A        tb.put(%22D%22, 4);%0A        tb.put(%22E%22, 5);%0A        tb.put(%22F%22, 6);%0A        tb.put(%22G%22, 7);%0A        tb.put(%22H%22, 8);%0A        tb.put(%22I%22, 9);%0A        tb.put(%22J%22, 10);%0A        tb.put(%22K%22, 11);%0A        tb.put(%22L%22, 12);%0A        tb.put(%22M%22, 13);%0A        tb.put(%22N%22, 14);%0A        tb.put(%22O%22, 15);%0A        tb.put(%22P%22, 16);%0A        tb.put(%22Q%22, 17);%0A        tb.put(%22R%22, 18);%0A        tb.put(%22S%22, 19);%0A        tb.put(%22T%22, 20);%0A        tb.put(%22U%22, 21);%0A        tb.put(%22V%22, 22);%0A        tb.put(%22W%22, 23);%0A        tb.put(%22X%22, 24);%0A        tb.put(%22Y%22, 25);%0A        tb.put(%22Z%22, 26);%0A        %0A        int len = s.length();%0A        int power = 1;%0A        %0A        for(int i = 0; i %3C len; i++)%7B%0A            String sym = String.valueOf(s.charAt(len - 1 - i));%0A            int amount = tb.get(sym) * power;%0A            num += amount;%0A            power *= 26;%0A        %7D%0A        %0A        return num;%0A        %0A    %7D%0A%7D%0A

Create ExcelSheetColNum_001.java