import java.util.Arrays;

public class javaTest {

    public static void main(String[] args) {
        byte[] old = new byte[] {64,87,51,00,07,87};
        byte[] n = null;
        n = Arrays.copyOfRange(old, 1, 5);
        for(byte i:n)
            System.out.print(i+" ");
    }

}  

結(jié)果：

image.png

Arrays.copyOfRange(數(shù)組，開(kāi)始下標(biāo)，結(jié)束下標(biāo))；