Simple question; byte[] addition

Question

How to add byte[] inside a another byte array?
Eg: I want to add b[] inside a[]
The total length of a[] shud be a.length+b.length..........

Answer 1

You can use the static method System.arraycopy(args).
byte b[] = new byte[20];
byte a[] = new byte[10];
byte c[] = new byte[b.length+a.length];
System.arraycopy(b,0,c,0,b.length);
System.arraycopy(a,0,c,b.length,a.length);