Looping Map in Apex Salesforce

How to loop map?Use values().It is quite useful if the map contain object where we need to get the object property.

Map<String,String> mapStr = new Map<String,String>();

mapStr.put('A','angsa');
mapStr.put('B','beruk');
mapStr.put('C','cicak');
system.debug('@mapStr ======'+mapStr);
for(String s:mapStr.values()){
    system.debug('@'+ s);
}

The output :

DEBUG|@mapStr ======{A=angsa, B=beruk, C=cicak}
DEBUG|@angsa
DEBUG|@beruk
DEBUG|@cicak

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