JAVA面试题之实现字符串的倒序输出

 1 package shb.java.demo;
 2 
 3 public class MyTest {
 4     public static void main(String[] args) {
 5         String string = "For God so loved the world kdkdk";
 6         reverse_2(string);
 7     }
 8     //方法一
 9     public static void reverse(String str){
10         
11         String[] strings = str.split(" ");
12         for(int i= 0 ; i < strings.length;i++){
13             String top =strings[0];
14 
15                      for(int j=1;j<strings.length-i;j++){
16 
17                       strings[j-1]= strings[j];
18 
19             }
20                      strings[strings.length-i-1]=top;
21 
22             }
23         for(String string:strings){
24             System.out.println(string);
25         }
26     }
27     //方法二
28     public static void reverse_2(String str_2){
29         String []strings = str_2.split(" ");
30         String temp = "";
31         if(strings.length%2==0){
32         for(int i=0;i<strings.length/2;i++){
33             temp = strings[i];
34             strings[i] = strings[strings.length-1-i];
35             strings[strings.length-1-i] = temp;
36         }    
37         for(String string2:strings){
38             System.out.println(string2);
39         }
40         }else {
41             for(int i=0;i<(strings.length-1)/2;i++){
42                 temp = strings[i];
43                 strings[i] = strings[strings.length-1-i];
44                 strings[strings.length-1-i] = temp;
45             }    
46             for(String string2:strings){
47                 System.out.println(string2);
48             }
49         }
50     }
51 }