Java CharArrayWriter toString()用法及代碼示例

Java中CharArrayWriter類的toString()方法將給定的輸入數據轉換為字符串。

用法：

public char[] toCharArray()

參數：此方法不接受任何參數。

返回值：此方法返回輸入數據的副本。

以下示例程序旨在說明上述方法：

示例1:

// Java program to illustrate the 
// above mentioned method 
  
import java.io.*; 
  
public class GFG { 
    public static void main(String[] args) 
        throws IOException 
    { 
  
        // Initializing String Witer 
        CharArrayWriter geek_writer1 
            = new CharArrayWriter(); 
  
        CharSequence char_sq1 = "geeks for + "; 
        CharSequence char_sq2 = "geeks"; 
  
        // Use of append(CharSequence char_sq) 
        geek_writer1.append(char_sq1); 
        geek_writer1.append(char_sq2); 
  
        // Convert it into string and print 
        System.out.println("String : "
                           + geek_writer1.toString()); 
    } 
}

輸出：

String : geeks for + geeks

示例2:

// Java program to illustrate the 
// above mentioned method 
  
import java.io.*; 
  
public class GFG { 
    public static void main(String[] args) 
        throws IOException 
    { 
  
        // Initializing String Witer 
        CharArrayWriter geek_writer1 
            = new CharArrayWriter(); 
  
        CharSequence char_sq1 = "Gopal "; 
        CharSequence char_sq2 = "Dave"; 
  
        // Use of append(CharSequence char_sq) 
        geek_writer1.append(char_sq1); 
        geek_writer1.append(char_sq2); 
  
        // Convert it into string and print 
        System.out.println("String : "
                           + geek_writer1.toString()); 
    } 
}

輸出：

String : Gopal Dave

參考： https://docs.oracle.com/javase/10/docs/api/java/io/CharArrayWriter.html#toString()

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