java.io.CharArrayWriter.append(CharSequence csq)方法實例

java.io.CharArrayWriter.append(CharSequence csq) 方法會將特定的字符序列到這個writer。

聲明

以下是java.io.CharArrayWriter.append(CharSequence csq)方法的聲明：

public CharArrayWriter append(CharSequence csq)

參數

• csq - 字符序列進行追加。如果字符序列爲空，writer被追加4個字符'null'。

返回值

當前的CharArrayWriter

異常

• NA

例子

下面的示例演示java.io.CharArrayWriter.append(CharSequence csq)方法的用法。

package com.yiibai; import java.io.CharArrayWriter; public class CharArrayWriterDemo { public static void main(String[] args) { CharArrayWriter chw = null; try{ // create character array writer chw = new CharArrayWriter(); // declare character sequences CharSequence csq = "12345 "; CharSequence csq1 = "67890 "; CharSequence csq2 = "ABCDE "; CharSequence csq3 = "abcde "; // append character sequences to the writer chw.append(csq); chw.append(csq1); chw.append(csq2); chw.append(csq3); // prints out the character sequences System.out.println(chw.toString()); }catch(Exception e){ // for any error e.printStackTrace(); }finally{ // releases all system resources from writer if(chw!=null) chw.close(); } } }

讓我們來編譯和運行上面的程序，這將產生以下結果：

12345 67890 ABCDE abcde