How do you convert an ArrayList to a string in Java?

To convert the contents of an ArrayList to a String, create a StringBuffer object append the contents of the ArrayList to it, finally convert the StringBuffer object to String using the toString() method.

Does ArrayList have a toString method?

Note: The ArrayList class does not have its own toString() method. Rather it overrides the method from the Object class.

Does ArrayList override toString?

You can’t override the toString method of ArrayList 1. Instead, you can use a utility class that converts an ArrayList to a String the way you want/need. Another alternative would be using Arrays.

How can I convert a string to an array in Java?

Converting string into Array can be done by split() method of java and StringTokenizer() method of StringTokenizer class. We will give you both method of convert String into array. Split method is newer method in java, StringTokenizer was old method and previous it was used.

How do I sort a string in Java?

Sort a String in Java (2 different ways) String class doesn’t have any method that directly sort a string, but we can sort a string by applying other methods one after other. Method 1(natural sorting) : Apply toCharArray() method on input string to create a char array for input string.

How do I sort array in Java?

To use the Arrays class in a program to sort an array, undertake the following steps: Use the import java.util.*; statement to make all of the java.util classes available in the program. Create the array. Use the sort() method of the Arrays class to rearrange an array.

How to concat two string arrays in Java?

operator is one of the easiest way to concatenate two Strings in Java that is used by vast majority of Java developers.