Java Writer append(char)方法及示例

Java中Writer类的append(char)方法是用来在Writer上追加指定的char值。这个char值被作为一个参数。

语法。

public void append(char charValue)

参数。这个方法接受一个强制性的参数charValue，它是要附加到写入器上的char值。

返回值。这个方法不返回任何值。

下面的方法说明了append(char)方法的工作。

程序 1:

// Java program to demonstrate// Writer append(char) method  import java.io.*;  class GFG {    public static void main(String[] args)    {          try {              // Create a Writer instance            Writer writer                = new PrintWriter(System.out);              // Append the char value 'A'            // to this writer using append() method            // This will put the charValue in the            // writer till it is appended on the console            writer.append('A');              writer.flush();        }        catch (Exception e) {            System.out.println(e);        }    }}

输出:

A

程序2。

// Java program to demonstrate// Writer append(char) method  import java.io.*;  class GFG {    public static void main(String[] args)    {          try {              // Create a Writer instance            Writer writer                = new PrintWriter(System.out);              // Append the char value 'G'            // to this writer using append() method            // This will put the charValue in the            // writer till it is appended on the console            writer.append('G');              writer.flush();        }        catch (Exception e) {            System.out.println(e);        }    }}

输出:

G