Question

java中如何把2个byte数组连起来

byte[] message;
byte[] Head;
byte[] Body;

message=Head+Body

Answer 1

嘎嘎，1楼有意思

public class Test {
public static void main(String[] args) {
byte[] message;
byte[] Head=new byte[3];
byte[] Body=new byte[4];

message=new byte[Head.length+Body.length];

for (int i = 0; i < message.length; i++) {
if(i<Head.length){
message[i]=Head[i];
}else{
message[i]=Body[i-Head.length];
}
}
}
}

Answer 2

你这样写是不行的 因为数组的长度是固定的。
你可以用list来做
List message;
byte[] Head;
byte[] Body;
inti=0;
for(i = 0 ;i<Head.length;i++)
message[i]=Head[i];
for(int j=0; j<Body.length;j++)
message[i]=Body[j];

Answer 3

public class Test {
public static void main(String[] args) {
byte[] message;
byte[] Head=new byte[3];
byte[] Body=new byte[4];

message=new byte[Head.length+Body.length];

for (int i = 0; i < message.length; i++) {
if(i<Head.length){
message[i]=Head[i];
}else{
message[i]=Body[i-Head.length];
}
}
}
}

Answer 4

import java.util.*;
public class cool{
public static void main(String[]args){
System.out.println("gei wo fen ba");
}
}

Answer 5

public
class
Test
{
public
static
void
main(String[]
args)
{
byte[]
message;
byte[]
Head=new
byte[3];
byte[]
Body=new
byte[4];
message=new
byte[Head.length+Body.length];
for
(int
i
=
0;
i
<
message.length;
i++)
{
if(i<Head.length){
message[i]=Head[i];
}else{
message[i]=Body[i-Head.length];
}
}
}
}