Java StringWriter flush()用法及代码示例

Java中的StringWriter类的flush()方法用于刷新编写器。通过刷新写入器，意味着清除写入器中可能在写入器内部或可能不在写入器内部的任何元素。它既不接受任何参数，也不返回任何值。

用法:

public void flush()

参数：此方法不接受任何参数。

返回值：此方法不返回任何值。它只是刷新作家。

以下示例程序旨在说明flush()方法的用法：

示例1:

// Java program to demonstrate 
// StringWriter flush() method 
  
import java.io.*; 
  
class GFG { 
    public static void main(String[] args) 
    { 
        // The string to be written in the writer 
        String str = "GeeksForGeeks"; 
  
        try { 
  
            // Create a StringWriter instance 
            StringWriter writer 
                = new StringWriter(); 
  
            // Write the above string to this writer 
            // This will put the string in the writer 
            // till it is printed on the console 
            writer.write(str); 
  
            System.out.println(writer.toString()); 
  
            // Now clear the writer 
            // using flush() method 
            writer.flush(); 
        } 
        catch (Exception e) { 
            System.out.println(e); 
        } 
    } 
}

输出：

GeeksForGeeks

示例2:

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

输出：

相关用法

注：本文由纯净天空筛选整理自Code_r大神的英文原创作品 StringWriter flush() method in Java with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。