Java 通过追加到StringBuilder来反转字符串

欢马劈雪

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通过追加到StringBuilder来反转字符串

实例源码：

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public class StringsDemo {

public static void main(String[] args) {

String palindrome = "Dot saw I was Tod";

int len = palindrome.length();//时代Java - nowjava.com

StringBuilder dest = new StringBuilder(len);

for (int i = (len - 1); i >= 0; i--) {

dest.append(palindrome.charAt(i));

}

System.out.format("%s%n", dest.toString());

}

* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions

* are met:

*   - Redistributions of source code must retain the above copyright

*     notice, this list of conditions and the following disclaimer.

*   - Redistributions in binary form must reproduce the above copyright

*     notice, this list of conditions and the following disclaimer in the

*     documentation and/or other materials provided with the distribution.

*   - Neither the name of Oracle or the names of its

*     contributors may be used to endorse or promote products derived

*     from this software without specific prior written permission.

* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
/**代码未完, 请加载全部代码(NowJava.com).**/

​x
 
​
public class StringsDemo {
​
    public static void main(String[] args) {
​
        String palindrome = "Dot saw I was Tod";
​
        int len = palindrome.length();//时代Java - nowjava.com
​
        StringBuilder dest = new StringBuilder(len);
​
        for (int i = (len - 1); i >= 0; i--) {
​
            dest.append(palindrome.charAt(i));
​
        }
​
        System.out.format("%s%n", dest.toString());
​
    }
​
}
​
​
/*
​
 * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.
​
 *
​
 * Redistribution and use in source and binary forms, with or without
​
 * modification, are permitted provided that the following conditions
​
 * are met:
​
 *
​
 *   - Redistributions of source code must retain the above copyright
​
 *     notice, this list of conditions and the following disclaimer.
​
 *
​
 *   - Redistributions in binary form must reproduce the above copyright
​
 *     notice, this list of conditions and the following disclaimer in the
​
 *     documentation and/or other materials provided with the distribution.
​
 *
​
 *   - Neither the name of Oracle or the names of its
​
 *     contributors may be used to endorse or promote products derived
​
 *     from this software without specific prior written permission.
​
 *
​
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
​
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
​
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
​
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
​
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
​
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
/**代码未完, 请加载全部代码(NowJava.com).**/