What is the capacity of ArrayList in Java?

Whenever an instance of ArrayList in Java is created then by default the capacity of Arraylist is 10. Since ArrayList is a growable array, it automatically resizes itself whenever a number of elements in ArrayList grow beyond a threshold. Does ArrayList have a capacity? An ArrayList has an initial capacity which is simply the size …

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Is string function in Java?

What is String function Java? Java String class provides a lot of methods to perform operations on strings such as compare(), concat(), equals(), split(), length(), replace(), compareTo(), intern(), substring() etc. The java.lang.String class implements Serializable, Comparable and CharSequence interfaces. Is a String function? String functions are functions that have a non-numerical result. A string is …

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How do I count the number of records in a table in SQL?

The SQL COUNT() function returns the number of rows in a table satisfying the criteria specified in the WHERE clause. It sets the number of rows or non NULL column values. COUNT() returns 0 if there were no matching rows. How do I find the number of records in a SQL table? SQL COUNT() Function …

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Is multiple inheritance supported in PHP explain?

PHP doesn’t support multiple inheritance but by using Interfaces in PHP or using Traits in PHP instead of classes, we can implement it. … Classes, case classes, objects, and traits can all extend no more than one class but can extend multiple traits at the same time. Why is multiple inheritance not supported in PHP? …

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