Java PrintWriter println(char[])用法及代码示例

Java中的PrintWriter类的println(char [])方法用于在流上打印指定的字符数组，然后换行。该字符数组作为参数。

用法:

public void println(char[] charArray)

参数：此方法接受强制参数charArray，该参数是要在Stream中打印的字符数组。

返回值：此方法不返回任何值。

异常：如果指定的charArray()为null，则此方法返回NullPointerException。

以下方法说明了println(char [])方法的用法：

程序1:

// Java program to demonstrate 
// PrintWriter println(char[]) method 
  
import java.io.*; 
  
class GFG { 
    public static void main(String[] args) 
    { 
  
        try { 
  
            // Create a PrintWriter instance 
            PrintWriter writer 
                = new PrintWriter(System.out); 
  
            // Get the character array 
            // to be printed in the stream 
            char[] charArray = { 'G', 'e', 'e', 'k', 's', 
                                 'F', 'o', 'r', 
                                 'G', 'e', 'e', 'k', 's' }; 
  
            // print the charArray 
            // to this writer using println() method 
            // This will put the charArray in the stream 
            // till it is printed on the console 
            writer.println(charArray); 
  
            writer.flush(); 
        } 
        catch (Exception e) { 
            System.out.println(e); 
        } 
    } 
}

输出：

GeeksForGeeks

程序2:

// Java program to demonstrate 
// PrintWriter println(char[]) method 
  
import java.io.*; 
  
class GFG { 
    public static void main(String[] args) 
    { 
  
        try { 
  
            // Create a PrintWriter instance 
            PrintWriter writer 
                = new PrintWriter(System.out); 
  
            // Get the character array 
            // to be printed in the stream 
            char[] charArray = { 'G', 'F', 'G' }; 
  
            // print the charArray 
            // to this writer using println() method 
            // This will put the charArray in the stream 
            // till it is printed on the console 
            writer.println(charArray); 
  
            writer.flush(); 
        } 
        catch (Exception e) { 
            System.out.println(e); 
        } 
    } 
}

输出：

GFG

相关用法

注：本文由纯净天空筛选整理自Kirti_Mangal大神的英文原创作品 PrintWriter println(char[]) 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。