📅  最后修改于: 2022-03-11 14:52:25.613000             🧑  作者: Mango
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
int size = 5 ;
double[] arrayList = new double[size];
for(int i = 0 ; i < arrayList.length ; ++i){
arrayList[i] = (Math.random()*1000);
}
mergeSort(arrayList,0,arrayList.length-1);
print(arrayList);
}
public static void print(double [] arrayList){
for(int i = 0 ; i < arrayList.length; ++i){
System.out.println(arrayList[i]);
}
}
public static void mergeSort(double [] arr , int l , int r){
if(l