In this tutorial we will see how tojoin (or Combine) two ArrayLists in Java. We will be usingaddAll()method to add both the ArrayLists in one finalArrayList. Example: In this example we are merging two ArrayLists in one single ArrayList and then displaying the elements of final List. p...
In these examples, we combined the lists, but in the final list, we had duplicate elements. This may not be the desired output in many cases. Next, we will learn to merge the lists, excluding duplicates. 2. Merging Two ArrayLists excluding Duplicate Elements To get a merged list minus d...
Reverse a String in Java Convert Float to String Convert Integer to String Compare two String Replace SubString from String Find word in String Repeat String N Times Remove white space from string Convert char array to String Join Strings Convert char to String Convert double to...
In this example, we have a list of integers that we want to sort in ascending order. We use theCollections.sort()method to sort the list, and then print the sorted list to the console. The output shows the list sorted in ascending order. This is a basic way to sort a list in Jav...
To convert an array to a Set in Java, you can use the Arrays.asList() method to create a List from the array, and then use the List.toSet() method to create a Set from the List. Here is an example of how to convert an array to a Set: import java.util.Arrays; import java....
In this case, we want to remove all the commas from the string, represented by /g. Join the Elements of the Array Using .join() Method in JavaScript Another way of converting an array to a string is by using the join() method. This method will take each element from the array and ...
String class split(String regex) can be used to convert String to array in java. If you are working with java regular expression, you can also use Pattern class split(String regex) method. Let’s see how to convert String to an array with a simple java class example. package com.journal...
In this Java tutorial, you will learn How to Find Maximum Occurrence of Words from given Text File? Here is a logic for getting top element: Create a
In this lesson, you will learn how to clone Java arrays. We will discuss the concept of a shallow and deep copy, and look at single and...
The toCharArray() method converts a string to a char array in Java. This method lets you manipulate individual characters in a string as list items. Spaces, numbers, letters, and other characters are all added to the char array. When coding, sometimes you’ll want to convert a Java ...