Java 中 StringWriter write(int)方法示例

原文:https://www . geeksforgeeks . org/stringwriter-writeint-method-in-Java-with-examples/

Java 中 StringWriter 类的 write(int) 方法用于在 Writer 上写入指定的字节值。该字节值是使用作为整数值传递的字节值的 ASCII 值指定的。该整数值被作为参数。

语法:

public void write(int ascii)

参数:该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:此方法不返回值。

下面的程序说明了 write(int)方法的工作原理:

程序 1:

// 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);
        }
    }
}

Output:

0

程序 2:

// 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);
        }
    }
}

Output:

A