# Single-Row Keyboard

There is a special keyboard with all keys in a single row.

Given a string `keyboard` of length 26 indicating the layout of the keyboard (indexed from 0 to 25), initially your finger is at index 0. To type a character, you have to move your finger to the index of the desired character. The time taken to move your finger from index `i` to index `j` is `|i - j|`.

You want to type a string `word`. Write a function to calculate how much time it takes to type it with one finger.

Example 1:

```Input: keyboard = "abcdefghijklmnopqrstuvwxyz", word = "cba"
Output: 4
Explanation: The index moves from 0 to 2 to write 'c' then to 1 to write 'b' then to 0 again to write 'a'.
Total time = 2 + 1 + 1 = 4.
```

Example 2:

```Input: keyboard = "pqrstuvwxyzabcdefghijklmno", word = "leetcode"
Output: 73
```

Constraints:

• `keyboard.length == 26`
• `keyboard` contains each English lowercase letter exactly once in some order.
• `1 <= word.length <= 10^4`
• `word[i]` is an English lowercase letter.

Example

```class Solution {
public int calculateTime(String keyboard, String word) {

Map<Character,Integer> keyMap = new HashMap<>();
for (int i = 0; i < keyboard.length(); i++) {
keyMap.put(keyboard.charAt(i), i);
}
int total_moves = 0;
int curPosition = 0;
for (int i = 0; i < word.length(); i++) {
char cur = word.charAt(i);
int target = keyMap.get(cur);
total_moves += Math.abs(curPosition - target);
curPosition = target;
}