Get keys from HashMap in Java

A HashMap contains more than one key. You can use keySet() to get the set of all keys. will store 1 with key “foo” and 2 with key “bar”. To iterate over all the keys: will print “foo” and “bar”.

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What I eventually used was this: To generate a keystore: See also here. Potentially storepass and keypass might be different, in which case the ks.load and kmf.init must use storepass and keypass, respectively.