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jitaInfo=jitaService.getOne(id);
cartList.add(jitaInfo);
jitaInfo=jitaService.getOne(id);
package com.xuz.csdn.worldcup.day22;
import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
public class ListRepeatTest {
public static void main(String[] args) {
List<String> list = new ArrayList<String>();
list.add("1");
list.add("1");
list.add("2");
list.add("3");
Set<String> set = new LinkedHashSet<String>();
set.addAll(list);
list.clear();
list.addAll(set);
System.out.println(list);
}
}
jitaInfo=jitaService.getOne(id);
if(!cartList.contains(jitaInfo)){
cartList.add(jitaInfo);
}