Java实现字符串倒序输出的几种方法.doc

Java实现字符串倒序输出的几种方法 收藏 1. 最容易想到的估计就是利用String类的toCharArray()，再倒序输出数组的方法了。 view plaincopy to clipboardprint?import javax.swing.JOptionPane; public class ReverseString public static void main (String args) String originalString; String resultString = ; originalString = JOptionPane.showInputDialog(Please input a String: ); char charArray = originalString.toCharArray(); for (int i=charArray.length-1; i=0; i-) resultString += charArrayi; JOptionPane.showMessageDialog(null, resultString, Reverse String, JOptionPane.INFORMATION_MESSAGE); import javax.swing.JOptionPane;public class ReverseString public static void main (String args)String originalString;String resultString = ;originalString = JOptionPane.showInputDialog(Please input a String: );char charArray = originalString.toCharArray();for (int i=charArray.length-1; i=0; i-)resultString += charArrayi;JOptionPane.showMessageDialog(null, resultString, Reverse String, JOptionPane.INFORMATION_MESSAGE); 2. 还可以利用String类提供的subString()方法，利用递归的办法输出倒序字符串。 view plaincopy to clipboardprint?import javax.swing.JOptionPane; public class ReverseString public static void reverseString (String str) if (str.length() = 1) System.out.print(str); else String subString1 = str.substring(0, str.length()-1); String subString2 = str.substring(str.length()-1); System.out.print(subString2); reverseString (subString1); public static void main (String args) String originalString; originalString = JOptionPane.showInputDialog(Please input a String: ); reverseString (originalString); import javax.swing.JOptionPane;public class ReverseString public static void reverseString (String str)if (str.length() = 1)System.out.print(str);elseString subString1 = str.substring(0, str.length()-1);String subString2 = str.substring(str.length()-1);System.out.print(subString2);reverseString (subString1);public static void main (String args)String originalString;originalString = JOptionPane.showInputDialog(Please input a String: );reverseString (originalString); 3. 还有就是不把字符串定义为String类，而是定义成一个StringBuffer类，用StringBuffer类中的reverse()方法直接倒序字符串。 view plaincopy to clipboardprint?import javax.swing.JOptionPane; public class ReverseString public static void reverseString (String str) StringBuffer stringBuffer = new StringBuffer (str); System.out.print(stringBuffer.reverse(); public static void main (String args) String originalString; originalString = JOptionPane.showInputDialog(Please input a String: ); reverseString (originalString); 本文来自CSDN博客，转载请标明出处：/justinavril/archive/2008/07/27/2719567.aspx方法四：import java.util.*;/倒入的util中的包用Scanner类;public class TestOhce public static void invertOrder(String s) /这是倒序的字符串，用字符数组实现； char cArray = s.toCharArray(); for (int i = 0, j = cArray.length - 1; i j; i+, j-) /倒序算法； char tmp; /设置一个中间字符变量； tmp = cArrayj; cArrayj = cArrayi; cArrayi = tmp; for (int i = 0; i =0; i-) 7 resultString +=charArrayi; 8 9 System.out.println(resultString); 10 11 方法六：如果使用reverse()方法1 Java代码 2 public class reverseTest 3 4 public static void main(Str