Java程序返回提供的字节数组的十六进制值
以下是提供的字节数组-
byte[] b = new byte[]{'x', 'y', 'z'};我们在此处创建了一个自定义方法“display”，并传递了字节数组值。相同的方法将字节数组转换为十六进制字符串-
public static String display(byte[] b1){
StringBuilder strBuilder = new StringBuilder();
for(byte val : b1){
strBuilder.append(String.format("%02x", val&0xff));
}
return strBuilder.toString();
}现在让我们来看整个示例-
示例
public class Demo {
public static void main(String args[]) {
byte[] b = new byte[]{'x', 'y', 'z'};
/* byte array cannot be displayed as String because it may have non-printable
characters e.g. 0 is NUL, 5 is ENQ in ASCII format */
String str = new String(b);
System.out.println(str);
//十六进制字符串的字节数组
System.out.println("Byte array to Hex String = " + display(b));
}
public static String display(byte[] b1){
StringBuilder strBuilder = new StringBuilder();
for(byte val : b1){
strBuilder.append(String.format("%02x", val&0xff));
}
return strBuilder.toString();
}
}输出结果
xyz Byte array to Hex String = 78797a