Map<String,String>map1=new HashMap<>();
map1.put("aet","eat");
map1.put("abt","bat");
map1.put("cfv","vcf");
map1.put("acd","cad");
map1.entrySet().stream().forEach((Map.Entry<String,String> entry)->{
String key = entry.getKey();
String value = entry.getValue();
});