Fast Reference ▼▼▼
List 입력
List<String> list = new ArrayList<String>();
list.add("QM6");
list.add("SORRENTO");
List 출력(Iterator 사용)
Iterator<String> it = list.iterator();
while(it.hasNext()) {
String str = (String)it.next();
System.out.println(str);
}
List 출력(향상된 for문)
for(Object obj : list) {
String str = (String)obj;
System.out.println(str);
}
Map 입력
Map<Integer, String> map = new HashMap<Integer, String>();
map.put(1, "MALIBU");
map.put(2, "SM6");
Map 출력(Key)
Iterator<Integer> itKey = map.keySet().iterator();
while(itKey.hasNext()) {
System.out.println(itKey.next());
}
Map 출력(Value)
Iterator<String> itValue = map.values().iterator();
while(itValue.hasNext()){
System.out.println(itValue.next());
}
도움받은 사이트 : http://mainia.tistory.com/2323 [녹두장군 블로그]
[추가]
Map<String, Object> 형식 출력
Map<String, Object> paramMap = new HashMap<String, Object>();
for(Map.Entry entry : paramMap.entrySet()){
System.out.println("key: " + entry.getKey() + " | value: " + entry.getValue());
}
List<Map<String, Object>> 형식 출력
List<Map<String, Object>> resultMap = new ArrayList<Map<String, Object>>();
for(Map<String, Object> map : resultMap){
for(Map.Entry<String, Object> entry:map.entrySet()){
String key = entry.getKey();
Object value = entry.getValue();
System.out.println("key: " + key + " | value: " + value);
}
}
도움 받은 사이트 : http://stackoverflow.com/questions/36782231/printing-a-java-map-mapstring-object-how
http://stackoverflow.com/questions/5787079/how-to-iterate-a-list-like-listmapstring-object
[Vector 출력]
Iterator it = vector.iterator();
while(it.hasNext()) {
System.out.println(it.next());
}
도움받은 사이트 : https://examples.javacodegeeks.com/core-java/util/vector/vector-iterator-example/
Fast Reference ▲▲▲
