hashmap - Printing a java map Map<String, Object> - How? -

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• how efficiently iterate on each entry in map? 35 answers

how print information map has object value?

i have created following map:

map<string, object> objectset = new hashmap<>(); 

the object has own class own instance variables

i have populated above map data.

i have created printmap method, can seem print keys of map

how map print <object> values using each loop?

so far, i've got:

for (string keys : objectset.keyset()) {    system.out.println(keys); } 

the above prints out keys. want able print out object variables too.

i'm sure there's nice library sort of thing you... stick approach you're going with, map#entryset gives combined object key and value. like:

for (map.entry<string, object> entry : map.entryset()) {     system.out.println(entry.getkey() + ":" + entry.getvalue().tostring()); } 

will you're after.

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if you're using java 8, there's new streaming approach.

map.foreach((key, value) -> system.out.println(key + ":" + value));