题解 | #最长公共前缀#

import java.util.*;


public class Solution {
    /**
     *
     * @param strs string字符串一维数组
     * @return string字符串
     */
    public String longestCommonPrefix (String[] strs) {
        // write code here
        if (strs == null || strs.length == 0) return "";
        String model = strs[0];
        StringBuilder builder = new StringBuilder();
        char[] modelChars = model.toCharArray();
        for (int i = 0; i < modelChars.length; i++) {
            char charAt = modelChars[i];
            for (int j = 0; j < strs.length; j++) {
                try {
                    char charTemp = strs[j].charAt(i);
                } catch (Exception e) {
                    return builder.toString();
                }
                if (!(strs[j].charAt(i) == charAt)) {
                    return builder.toString();
                }
            }
            builder.append(charAt);
        }
        return builder.toString();
    }
}

即使在算法中，也是可以配合异常来解决问题的