Java 比较器

import java.util.Arrays;

public class ArrayDemo01 {
public static void main(String[] args) throws Exception {
int data[]=new int[] {4,6,8,48,1,55,5,99};
Arrays.sort(data);
System.out.println(Arrays.binarySearch(data, 99));
}

}

import java.util.Arrays;

public class ArrayDemo02 {
public static void main(String[] args) throws Exception {
int[] data = new int[3];
Arrays.fill(data, 8);
System.out.println(Arrays.toString(data));
}

}