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import java.util.*;
public class Sort{
public static void main(String[] args){
String [] a = {"1.11","1.1","5.2.1.3","5.2.2","2.3.6","3.3.6","2.3","3.4"};
quicksort(a,0,7);
System.out.println(Arrays.toString(a));
}
static void quicksort(String[] a, int low, int high){
if (low>=high){
return;
}
int i = low -1;
int j = low;
while(j<high){
if(a[j].compareTo(a[high])>0){
String t = a[j];
a[j] = a[i+1];
a[i+1] = t;
++i;
}
++j;
}
String t = a[high];
a[high] = a[i+1];
a[i+1] = t;
++i;
quicksort(a, low, i-1);
quicksort(a,i+1,high);
}
}
输出结果是[5.2.2, 5.2.1.3, 3.4, 3.3.6, 2.3.6, 2.3, 1.11, 1.1]
double arr[] = {1.11, 1.1, 5.213, 5.22, 2.36, 3.36, 2.3, 3.4};
Arrays.sort(arr);
for (int i = 0, j = arr.length - 1; i < j; i++, j--) {
double temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
public static void main(String[] args) {
double arr[] = {1.11, 1.1, 5.213, 5.22, 2.36, 3.36, 2.3, 3.4};
Arrays.sort(arr);
for (int i = arr.length-1; i >=0; i--) {
System.out.print(arr[i]+" ");
}
}
5.22 5.213 3.4 3.36 2.36 2.3 1.11 1.1