Java StringWriter append()方法
java.io.StringWriter.append(CharSequence csq) 方法将指定字符序列到此writer。
1 语法
public StringWriter append(CharSequence csq)
2 参数
csq:要追加的字符序列。如果csq为null,则将四个字符“null”附加到此编写器。
3 返回值
返回Writer。
4 示例
package com.yiidian;
/**
* 一点教程网: http://www.yiidian.com
*/
/**
* java.io.StringWriter.append(CharSequence csq)方法的例子
*/
import java.io.*;
public class Demo {
public static void main(String[] args) {
// create a new writer
StringWriter sw = new StringWriter();
// create two new sequences
CharSequence sq1 = "Hello";
CharSequence sq2 = " World";
// append sequence
sw.append(sq1);
// print result
System.out.println("" + sw.toString());
// append second sequence
sw.append(sq2);
// print result again
System.out.println("" + sw.toString());
}
}
输出结果为:
Hello
Hello World
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