java實現文件的複製

public class Copy {

public static void printArray(int[] temp){

for(int i=0;i<temp.length;i++){
System.out.print(temp[i] + " ");
if(i>0&&i%10==0){
System.out.println();
}
}

}
public static void main(String[] args) {
int[] list1 = {1,21,3,4,5};
int[] list2 =new int[17];//
/*for(int i =0;i<list1.length;i++){
list2[i] = list1[i];
}*/
printArray(list2);
System.out.println("開始複製");
System.arraycopy(list1, 0, list2, 5, list1.length);
printArray(list2);

}


}