Core Java小练习 - 反转文字

最新推荐文章于 2025-12-05 17:02:52 发布

最新推荐文章于 2025-12-05 17:02:52 发布 · 70 阅读

文章标签：

#java

本文提供了一个简单的Java程序，用于接收用户输入的字符串并输出其反转版本。通过使用字符数组和循环，实现字符串的反转功能。

传入一个字符串，得到反转的字符串：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class ReveserOrder {
public void order() throws IOException {
 InputStreamReader is = new InputStreamReader(System.in);
 BufferedReader br = new BufferedReader(is);
 String str = br.readLine();
 char c[] = str.toCharArray();
 int i = str.length();
 i--;
 char temp;
 for (int j = 0; j < i; j++, i--) {
 temp = c[j];
 c[j] = c[i];
 c[i] = temp;
 }
 System.out.println(new String(c, 0, str.length()));
}
public static void main(String[] args) throws IOException {
 new ReveserOrder().order();
}
}

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class ReverserO {
  public String reverserStr(String inStr){
    char[] charArray = inStr.toCharArray();
    int inStrLong = charArray.length;
    char[] returnCharArray = new char[inStrLong];
    for(int i=inStrLong-1,j=0;i>-1;i--,j++){
      returnCharArray[j]=charArray[i];
    }
    return new String(returnCharArray,0,inStrLong);
  }
  public static void main(String[] args) throws Exception {
    InputStreamReader inputStreamReader = new InputStreamReader(System.in);
    BufferedReader br = new BufferedReader(inputStreamReader);
    System.out.println(new ReverserO().reverserStr(br.readLine()));
  }
}