package java_huaweijishi;
import java.util.*;
/**
* 题目:计算字符串最后一个单词的长度,单词以空格隔开。
* @author hexiaoli
* 思路:1)自己递归实现功能
* 2)用java自带函数
*/
public class lastWordLength {
public static int lastWordLength1(String str){
//方法一:
int totalLength = str.length();
if(str == null || totalLength <= 0 || totalLength>5000){
return 0;
}
int length = 0;
int index = totalLength-1;
while(index>=0 && str.charAt(index)!=' '){
length++;
index--;
}
return length;
}
public static int lastWordLength2(String str) {
//方法二:java自带
String[] strs = str.split(" ");
return strs[strs.length-1].length();
}
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
while(scan.hasNext()){
String str = scan.nextLine();
System.out.println(lastWordLength1(str));
System.out.println(lastWordLength2(str));
}
}
}
华为机试(1)字符串最后一个单词的长度
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转载自blog.csdn.net/hxl0925/article/details/89328648
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