State the difference between == operator and equals() method.
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Answer:
| equals() | == |
|---|---|
| It is a method | It is a relational operator |
| It is used to check if the contents of two strings are same or not | It is used to check if two variables refer to the same object in memory |
| Example: String s1 = new String("hello"); String s2 = new String("hello"); boolean res = s1.equals(s2); System.out.println(res); The output of this code snippet is true as contents of s1 and s2 are the same. |
Example: String s1 = new String("hello"); String s2 = new String("hello"); boolean res = s1 == s2; System.out.println(res); The output of this code snippet is false as s1 and s2 point to different String objects. |
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