package test;import java.util.ArrayList; import java.util.Iterator; import java.util.List;public class SortTest { private List<Integer> list = new ArrayList<Integer>(); /** * @param args */ public SortTest() { list.add(11); list.add(10); list.add(62); list.add(50); } public List sort(List<Integer> a) { if (a.size() == 2) { if (a.get(0) < a.get(1)) { ; } else { int right = a.get(0); int left = a.get(1); a.clear(); a.add(left); a.add(right); return a; } } if (a.size() == 1) { return a; } int l = (a.size()-1) / 2;
int element = a.get(l); System.out.println(element); List<Integer> left = new ArrayList<Integer>(); List<Integer> right = new ArrayList<Integer>(); Iterator it = a.iterator(); while (it.hasNext()) { Integer i = (Integer) it.next(); if (i.intValue()<element) { left.add(i); } else if(i.intValue()>element){ right.add(i); } } System.out.println(left); System.out.println(right); if(left.size()!=0){ left = sort(left); } if(right.size()!=0){ right = sort(right); }
a.clear(); a.addAll(left); a.add(element); a.addAll(right); return a; } public static void main(String[] args) { // TODO Auto-generated method stub SortTest s = new SortTest(); s.sort(s.list); System.out.println(s.list); }}
import java.util.Iterator;
import java.util.List;public class SortTest { private List<Integer> list = new ArrayList<Integer>(); /**
* @param args
*/ public SortTest() {
list.add(11);
list.add(10);
list.add(62);
list.add(50);
} public List sort(List<Integer> a) {
if (a.size() == 2) {
if (a.get(0) < a.get(1)) {
;
} else {
int right = a.get(0);
int left = a.get(1);
a.clear();
a.add(left);
a.add(right);
return a;
}
}
if (a.size() == 1) {
return a;
}
int l = (a.size()-1) / 2;
int element = a.get(l);
System.out.println(element);
List<Integer> left = new ArrayList<Integer>();
List<Integer> right = new ArrayList<Integer>();
Iterator it = a.iterator();
while (it.hasNext()) {
Integer i = (Integer) it.next();
if (i.intValue()<element) {
left.add(i);
} else if(i.intValue()>element){
right.add(i);
}
}
System.out.println(left);
System.out.println(right);
if(left.size()!=0){
left = sort(left);
}
if(right.size()!=0){
right = sort(right);
}
a.clear();
a.addAll(left);
a.add(element);
a.addAll(right);
return a;
} public static void main(String[] args) {
// TODO Auto-generated method stub
SortTest s = new SortTest();
s.sort(s.list);
System.out.println(s.list);
}}