Arrays实用功能
public class CopyingArrays { public static void main(String[] args) { int[] i = new int[7]; int[] j = new int[10]; Arrays.fill(i, 47);//填充 Arrays.fill(j, 99); System.out.println("i="+Arrays.toString(i));//转换成字符串打印 System.out.println("j="+Arrays.toString(j)); System.arraycopy(i,0,j,0,i.length);//复制 System.out.println("j="+Arrays.toString(j)); System.out.println(Arrays.equals(i,j));//比拟 }}