Java中的编写器 append(char) 方法和示例
Java Writer类的append(char)方法用于在 writer 上追加指定的 char 值。这个 char 值被作为一个参数。
句法:
public void append(char charValue)
参数:此方法接受一个强制参数charValue ,它是要附加在写入器上的 char 值。
返回值:此方法不返回任何值。
下面的方法说明了 append(char) 方法的工作:
方案一:
// 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
方案二:
// 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