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Map<String, String> map = new IdentityHashMap<String, String> ();
map.put("a","b");
map.put("a","c");
map.put("a","d");
map.put("e","f");
System.out.println(map.get("a"));
/**
* 打印结果:d
*/
Map<String, List<String>> map = new IdentityHashMap<String, List<String>> ();
or
Map<String, String[]> map = new IdentityHashMap<String, String[]> ();
Map<String, String> map = new IdentityHashMap<String, String> ();
map.put("a","b");
map.put("a","c");
map.put("a","d");
map.put("e","f");
System.out.println(map.get("a"));
/**
* 打印结果:d
*/
Map<String, List<String>> map = new IdentityHashMap<String, List<String>> ();
or
Map<String, String[]> map = new IdentityHashMap<String, String[]> ();
Map<String, String> map = new IdentityHashMap<String, String> ();
map.put("a", "b");
map.put("c", "d");
System.out.println(map.get("a"));
/**
* 打印结果:b
*/
System.out.println(map.get(pars.getKey()));