What Is The Output Of This Program? 1. Import Java.util.*; 2. Class M

1.	What Is The Output Of This Program? 1. Import Java.util.*; 2. Class Maps { 3. Public Static Void Main(string Args[]) { 4. Hashmap Obj = New Hashmap(); 5. Obj.put("a", New Integer(1)); 6. Obj.put("b", New Integer(2)); 7. Obj.put("c", New Integer(3)); 8. System.out.println(obj.keyset()); 9. } 10. }
Answer» keySet() method returns a set containing all the KEYS USED in the invoking map. Here keys are characters A, B & C. 1, 2, 3 are the values given to these keys. Output: $ JAVAC Maps.java $ java Maps [A, B, C] keySet() method returns a set containing all the keys used in the invoking map. Here keys are characters A, B & C. 1, 2, 3 are the values given to these keys. Output: $ javac Maps.java $ java Maps [A, B, C]

What Is The Output Of This Program? 1. Import Java.util.*; 2. Class Maps { 3. Public Static Void Main(string Args[]) { 4. Hashmap Obj = New Hashmap(); 5. Obj.put("a", New Integer(1)); 6. Obj.put("b", New Integer(2)); 7. Obj.put("c", New Integer(3)); 8. System.out.println(obj.keyset()); 9. } 10. }

Answer»

keySet() method returns a set containing all the KEYS USED in the invoking map. Here keys are characters A, B & C. 1, 2, 3 are the values given to these keys.

Output:

$ JAVAC Maps.java
$ java Maps
[A, B, C]

keySet() method returns a set containing all the keys used in the invoking map. Here keys are characters A, B & C. 1, 2, 3 are the values given to these keys.

Output:

$ javac Maps.java
$ java Maps
[A, B, C]

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What Is The Output Of This Program? 1. Import Java.util.*; 2. Class Maps { 3. Public Static Void Main(string Args[]) { 4. Hashmap Obj = New Hashmap(); 5. Obj.put("a", New Integer(1)); 6. Obj.put("b", New Integer(2)); 7. Obj.put("c", New Integer(3)); 8. System.out.println(obj.keyset()); 9. } 10. }

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