请最大值:
int max(int a,int b){ return (a>b)?a:b; }
byte 型数组的相加组合。
byte [] a={1,2,3,4,5};
byte[] b={7,8,9};
byte [] c={10,12};
byte d[]=new byte [a.length+b.length+c.length];
System.out.println(d.length);
System.arraycopy(a, 0, d, 0, a.length);
System.arraycopy(b, 0, d,a.length, b.length);
System.arraycopy(c, 0, d, a.length+b.length, c.length);
for(byte i:d){
System.out.print(i);
}