Java实现-最长公共前缀

public class Solution {
    /**
     * @param strs: A list of strings
     * @return: The longest common prefix
     */
    public String longestCommonPrefix(String[] strs) {
        // write your code here
        if(strs.length==0){
			return "";
		}
		int min=Integer.MAX_VALUE;
		String minStr="";
		for(int i=0;i<strs.length;i++){
			if(min>strs[i].length()){
				minStr=strs[i];
				min=strs[i].length();
			}
		}
		if(min==0){
			return "";
		}
		for(int i=min;i>=0;i--){
			String standard=minStr.substring(0, i);
			int j=0;
			for(j=0;j<strs.length;j++){
				if(strs[j].substring(0, i).equals(standard)){
					continue;
				}else{
					break;
				}
			}
			if(j==strs.length){
				return standard;
			}
		}
		return "";

    }
}