I want to get a key and value pair randomly from java map

I used hash map to interpret English words as key and value, read one line at a time, and saved it I want to print this out randomly, but I don't know what to do.

map random java

2022-09-22 08:06

2 Answers

You can range random objects and add a value

2022-09-22 08:06

You can obtain elements randomly using random classes as shown below.

Map<String, String> wordMapper = Map.of("school", "school", "book", "book", "class", "class");

Object[] keys = wordMapper.keySet();
String randomKey = keys[new Random().nextInt(keys.length)];

wordMapper.get(randomKey);

2022-09-22 08:06

If you have any answers or tips

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