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How-to articles, tricks, and solutions about ARRAYS

A quick and easy way to join array elements with a separator (the opposite of split) in Java

To join array elements with a separator in Java, you can use the join method from the String class.

java string arrays

add an element to int [] array in java

To add an element to an array in Java, you can use one of the following methods:

java arrays

array_push() with key value pair

To add an element to the end of an array with a key-value pair in PHP, you can use the array_push() function.

php arrays

byte[] to file in Java

To write a byte[] to a file in Java, you can use the following code:

java file arrays io inputstream

Can we pass an array as parameter in any function in PHP?

Yes, you can pass an array as a parameter to a function in PHP.

php function arrays

Check if all values in array are the same

In PHP, you can use the array_unique function to check if all values in an array are the same.

php arrays

Convert ArrayList<String> to String[] array

To convert an ArrayList<String> to a String[] array in Java, you can use the toArray method of the ArrayList class and pass it an empty array of the appropriate type:

java arrays arraylist

Convert column integer values into date expressions

To convert column integer values into date expressions in PHP, you can use the date function.

php datetime arrays

Convert flat array to a delimited string to be saved in the database

You can use the implode() function to convert an array to a delimited string in PHP.

php string arrays implode

Convert list to array in Java

To convert a List to an array in Java, you can use the toArray() method of the List interface. This method returns an array containing all of the elements in the list in the proper order.

java list arrays arraylist