Map<String, Integer> studentScores = new Map<String, Integer>{
    'Alice' => 85,
    'Bob' => 92,
    'Charlie' => 78
};
 
// Access values using keys
System.debug(studentScores.get('Alice'));  // Output: 85
System.debug(studentScores.get('Bob'));    // Output: 92
 
// Iterate over the map
for (String student : studentScores.keySet()) {
    System.debug(student + ' scored ' + studentScores.get(student));
}
 
// Output:
// Alice scored 85
// Bob scored 92
// Charlie scored 78

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