Java PrintWriter write(char[], int, int)用法及代码示例

Java中PrintWriter类的write(char []，int，int)方法用于在流上写入指定字符数组的指定部分。该字符数组作为参数。起始索引和要写入的字符长度也作为参数。

用法:

public void write(char[] charArray, int startingIndex, int lengthOfCharArray)

参数：此方法接受三个强制参数：

charArray这是要写入流中的字符数组。
startingIndex这是获取字符部分的起始索引。
lengthOfCharArray这是要写入流中的字符的长度。

返回值：此方法不返回任何值。

下面的方法说明了write(char []，int，int)方法的用法方式：

程序1:

// Java program to demonstrate 
// PrintWriter write(char[], int, int) 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 written in the stream 
            char[] charArray = { 'G', 'e', 'e', 'k', 's', 
                                 'F', 'o', 'r', 
                                 'G', 'e', 'e', 'k', 's' }; 
  
            // Get the starting index 
            int startingIndex = 0; 
  
            // Get the length of char 
            int lengthOfCharArray = 5; 
  
            // Write the portion of the charArray 
            // to this writer using write() method 
            // This will put the charArray in the stream 
            // till it is printed on the console 
            writer.write(charArray, 
                         startingIndex, 
                         lengthOfCharArray); 
  
            writer.flush(); 
        } 
        catch (Exception e) { 
            System.out.println(e); 
        } 
    } 
}

输出：

Geeks

程序2:

// Java program to demonstrate 
// PrintWriter write(char[], int, int) 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 written in the stream 
            char[] charArray = { 'G', 'F', 'G' }; 
  
            // Get the starting index 
            int startingIndex = 2; 
  
            // Get the length of char 
            int lengthOfCharArray = 1; 
  
            // Write the portion of the charArray 
            // to this writer using write() method 
            // This will put the charArray in the stream 
            // till it is printed on the console 
            writer.write(charArray, 
                         startingIndex, 
                         lengthOfCharArray); 
  
            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Kirti_Mangal大神的英文原创作品 PrintWriter write(char[], int, int) 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。