Java 通过索引为StringBuilder设置char值

欢马劈雪

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通过索引为StringBuilder设置char值

实例源码：

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public class ComputeResult {

public static void main(String[] args) {

String original = "software";

StringBuilder result = new StringBuilder("hi");
        /**
         * N o  w  J a v a . c o m - 时  代  Java 提 供 
        **/

int index = original.indexOf('a');

/*1*/result.setCharAt(0, original.charAt(0));

/*2*/result.setCharAt(1, original.charAt(original.length() - 1));

/*3*/result.insert(1, original.charAt(4));

/*4*/result.append(original.substring(1, 4));

/*5*/result

.insert(3, (original.substring(index, index + 2) + " "));

System.out.println(result);

}

* 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 ComputeResult {
​
    public static void main(String[] args) {
​
        String original = "software";
​
        StringBuilder result = new StringBuilder("hi");
        /**
         * N o  w  J a v a . c o m - 时  代  Java 提 供 
        **/
​
        int index = original.indexOf('a');
​
​
        /*1*/result.setCharAt(0, original.charAt(0));
​
        /*2*/result.setCharAt(1, original.charAt(original.length() - 1));
​
        /*3*/result.insert(1, original.charAt(4));
​
        /*4*/result.append(original.substring(1, 4));
​
        /*5*/result
​
                .insert(3, (original.substring(index, index + 2) + " "));
​
​
        System.out.println(result);
​
    }
​
}
​
​
/*
​
 * 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).**/