用 Java 将字节数组转换为 Writer 的程序
原文:https://www . geesforgeks . org/program-to-convert-byte-array-to-writer-in-Java/
参考文献: 作家类
方法: Writer 类用于编写字符流，通过它可以将字节数组作为参数传递。通过这种方式，字节数组可以转换成 Writer 类。为了从字符串中获取字节数组，使用了 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));
}
}
Output:
Speed of light: 3.0e8
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