摘要:
LinkedHashSet<String> set = new LinkedHashSet<String>(arrayList.size()); set.addAll(arrayList); arrayList.clear(); arrayList.addAll(set); 阅读全文
摘要:
import java.util.ArrayList;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import java.util.Map.Entry; p 阅读全文