Map<String,Object> ddw=new HashMap<>();
ddw.put("height","150");
ddw.put("weight","510");
Map<String,Object> hl=new HashMap<>();
hl.put("height","160");
hl.put(" height","610");
Map<String,Object> gy=new HashMap<>();
gy.put("height","170");
gy.put("weight","710");
List<Map<String,Object>> list=new ArrayList<>();
list.add(ddw);
list.add(hl);
list.add(gy);
List<String> stateNameList = list.stream().map(n -> MapUtils.getMapStrdef(n,"height","")).collect(Collectors.toList());
for (String zyj:stateNameList) {
System.out.println(zyj);
}
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