Longest Common Prefix

public class Solution {
    public String longestCommonPrefix(String[] strs) {
		// Start typing your Java solution below
		// DO NOT write main() function
		if (strs.length == 0)
			return "";
		for (int i = 0; i < strs[0].length(); i++) {
			for (int j = 0; j < strs.length; j++) {
				if (i >= strs[j].length()
						|| strs[j].charAt(i) != strs[0].charAt(i)){
					return strs[0].substring(0, i);
				}
			}
		}
		return strs[0];
	}
}