Java Byte Array转Writer用法及代码示例

方法：
Writer类用于写入字符流，可以将字节数组作为参数传递。这样就可以将字节数组转换为Writer类。要从字符串中获取字节数组，请使用getBytes()方法。

下面是上述方法的实现：

程序：


// Java Program Convert 
// Byte Array to Writer 
  
import java.io.StringWriter; 
import java.io.Writer; 
  
public class GFG { 
  
    // Method which convert 
    // byte array into Writer Class 
    static String writeByte(byte[] byteString, 
                            byte[] byteInt, 
                            byte[] byteChar, 
                            byte[] byteDouble) 
    { 
  
        // Declare the writer class 
        Writer writer = new StringWriter(); 
  
        try { 
            // Call append() method 
            // to append byte array into 
            // writer class as append method 
            // takes input of only string object 
            writer 
                .append(new String(byteString) 
                        + new String(byteDouble) 
                        + new String(byteChar) 
                        + new String(byteInt)); 
  
            writer.close(); 
        } 
  
        catch (Exception e) { 
            System.out.println("Exception: " + e); 
        } 
  
        // return the string 
        return writer.toString(); 
    } 
  
    // Driver Code 
    public static void main(String args[]) 
    { 
  
        String str = "Speed of light: "; 
        int num = 8; 
        char ch = 'e'; 
        double dec = 3.0; 
  
        // Insert String value 
        byte[] byteString = str.getBytes(); 
  
        // Insert int value 
        byte[] byteInt = Integer.toString(num).getBytes(); 
  
        // Insert char value 
        byte[] byteChar = Character.toString(ch).getBytes(); 
  
        // Insert double value 
        byte[] byteDouble = Double.toString(dec).getBytes(); 
  
        // Call the method 
        System.out.println(writeByte(byteString, byteInt, 
                                     byteChar, byteDouble)); 
    } 
}

输出：

Speed of light: 3.0e8

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注：本文由纯净天空筛选整理自bilal-hungund大神的英文原创作品 Program to convert Byte Array to Writer in Java。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。