关于java:java-Arrays

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
 }
}

数组元素比拟