void close CharArrayWriter append(CharSequence csq, int start, int end) void flush 描述 所述java.io.CharArrayWriter.close()方法关闭该流,但不释放缓冲区。 声明 以下是java.io.CharArrayWriter.close()方法的声明 public void close() 参数 NA 返回值 此方法不返回任何值。 异常 NA 实例 以下示例显示了java.io.CharArrayWriter.close()方法的用法。 package com.tutorialspoint; import java.io.CharArrayWriter; public class CharArrayWriterAppendDemo { public static void main(String[] args) { CharArrayWriter chw = null; try { // create character array writer chw = new CharArrayWriter(); // declare character sequence CharSequence csq = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; // closes the stream chw.close(); // append character sequence to the writer chw.append(csq); // 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(); } } } 让我们编译并运行上面的程序,这将产生以下结果 ABCDEFGHIJKLMNOPQRSTUVWXYZ CharArrayWriter append(CharSequence csq, int start, int end) void flush