Java中的 StringWriter write(int) 方法及示例

Java中StringWriter类的write(int)方法用于在 writer 上写入指定的字节值。此字节值是使用作为整数值传递的字节值的 ASCII 值指定的。这个整数值被当作一个参数。

句法：

public void write(int ascii)

参数：此方法接受一个强制参数ascii ，它是要写入写入器的字节值的 ASCII 值。

返回值：此方法不返回任何值。

下面的程序说明了 write(int) 方法的工作：

方案一：

// Java program to demonstrate
// StringWriter write(int) method
  
import java.io.*;
  
class GFG {
    public static void main(String[] args)
    {
  
        try {
  
            // Create a StringWriter instance
            StringWriter writer
                = new StringWriter();
  
            // Write the byte value '0' to this writer
            // using write() method
            // This will put the string in the writer
            // till it is printed on the console
            writer.write(48);
  
            System.out.println(writer.toString());
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

输出：

0

方案二：

// Java program to demonstrate
// StringWriter write(int) method
  
import java.io.*;
  
class GFG {
    public static void main(String[] args)
    {
  
        try {
  
            // Create a StringWriter instance
            StringWriter writer
                = new StringWriter();
  
            // Write the byte value 'A' to this writer
            // using write() method
            // This will put the string in the writer
            // till it is printed on the console
            writer.write(65);
  
            System.out.println(writer.toString());
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

输出：

A