How to print all the values for a key in HashMap in java -
map<string, string> map = new hashmap<string, string>(); map.put("1", "xyz"); map.put("1", "abc"); map.put("1", "cde"); map.put("2", "err");`
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for above map want values associated key 1. expected output.
key:: 1 values are:: xyz, abc, cde
order of values doesn't important.
in map key should unique
. if associate new value existing key, overwrite value of existing entry.
you might need check interface map#put(k, v) method.
if map contained mapping key, old value replaced specified value.
so in case map have "cde"
value key "1"
.
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