方法 sort(obj[] a, int fromIndex, int toIndex) 在 java 中有什么作用？
java.util.Arrays.sort(Object[]a,intfromIndex,inttoIndex)方法根据其元素的自然顺序将指定对象数组的指定范围按升序排序。要排序的范围从索引fromIndex（含）扩展到索引toIndex（不包括）。
示例
import java.util.Arrays;
public class ArrayDemo {
public static void main(String[] args) {
Object ob[] = {27, 11, 5, 44};
for (Object number : ob) {
System.out.println("Number = " + number);
}
Arrays.sort(ob, 1, 3);
System.out.println("Object array with some sorted values(1 to 3) is:");
for (Object number : ob) {
System.out.println("Number = " + number);
}
}
}输出结果Number = 27 Number = 11 Number = 5 Number = 44 Object array with some sorted values(1 to 3) is: Number = 27 Number = 5 Number = 11 Number = 44