You Want to Enumerate All of the Keys in a Map

question 110

Multiple Choice

You want to enumerate all of the keys in a map named myMap whose keys are type String. Which of the following statements will allow you to do this?

• A) Set<String> keySet = myMap.keySet();
• For (String key : keySet) {. . . }
• B) Set<String> keySet = myMap.getKeys();
• For (String key : keySet) {. . . }
• C) Set<String> keySet = myMap.keys();
• For (String key : keySet) {. . . }
• D) Set<String> keySet = myMap.getKeySet();
• For (String key : keySet) {. . . }

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Definitions:

Transposes Digits

To switch the positions of numbers within a number, often leading to errors in mathematical operations or data entry.

Unilateral Mistake

A contractual misunderstanding that occurs when only one party is mistaken about a fundamental aspect of the contract.

Disclose Facts

The act of revealing or making known information that is true and relevant, often within a legal context.

Contract

A legally binding agreement between two or more parties that is enforceable by law.