P121 6.7 第一题和第二题

package nothh;

import java.util.Arrays;

public class shuzu6_7 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        //1.
        int arr1[] = new int[]{44,23,51,94,49};
        int[] arr2 = Arrays.copyOf(arr1,4);

        for(int i : arr1)
        {
            System.out.print(i + ",");
        }
        System.out.println();
        for(int i : arr2)
        {
            System.out.print(i + ",");
        }
        System.out.println();

        //2.
        int arr3[] = new int[]{24,54,87,13,94,64};
        int j = 0;

        for(int i = 0;i < arr3.length - 1;i++)
        {
            if(arr3[i] < arr3[i + 1])
            {    j = arr3[i];

                arr3[i] = arr3[i + 1];

                arr3[i + 1] = j;

            }

        }
        System.out.println(arr3[arr3.length - 1]);

    }

}

此为结果

44,23,51,94,49,
44,23,51,94,
13