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Java StringWriter toString()用法及代码示例


Java中的StringWriter类的toString()方法用于获取此StringWriter实例的String表示形式。此方法不接受任何参数,并返回所需的String值。

用法:

public String toString()

参数:此方法接受不接受任何参数。


返回值:此方法返回一个String值,该值是StringWriter实例的String表示形式。

下面的方法说明了toString()方法的用法方式:

示例1:

// Java program to demonstrate 
// StringWriter toString() method 
  
import java.io.*; 
  
class GFG { 
    public static void main(String[] args) 
    { 
  
        try { 
  
            // Create a StringWriter instance 
            StringWriter writer 
                = new StringWriter(); 
  
            // Get the String 
            // to be written in the stream 
            String string = "GeeksForGeeks"; 
  
            // Write the string 
            // to this writer using write() method 
            writer.write(string); 
  
            System.out.println("String representation: "
                               + writer.toString()); 
        } 
        catch (Exception e) { 
            System.out.println(e); 
        } 
    } 
}
输出:
String representation: GeeksForGeeks

示例2:

// Java program to demonstrate 
// StringWriter toString() method 
  
import java.io.*; 
  
class GFG { 
    public static void main(String[] args) 
    { 
  
        try { 
  
            // Create a StringWriter instance 
            StringWriter writer 
                = new StringWriter(); 
  
            // Get the String 
            // to be written in the stream 
            String string = "GFG"; 
  
            // Write the string 
            // to this writer using write() method 
            writer.write(string); 
  
            System.out.println("String representation: "
                               + writer.toString()); 
        } 
        catch (Exception e) { 
            System.out.println(e); 
        } 
    } 
}
输出:
String representation: GFG


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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 toString() 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。