How do I remove a specific string from a list in Java?

How do I remove a string from a list in Java?

However, there is more than one way of removing an element from the ArrayList that are as follows:

  1. Using ArrayList.remove() Method. By index. By element.
  2. Using Iterator.remove() Method.
  3. Using ArrayList.removeIf() Method.

How do I remove a specific string from a list of strings?

Use str. replace() and list comprehension to remove a character from a list of strings. Use the syntax [new_string for string in list] with new_string as string. replace(char, “”) and list as a list of strings to create a list containing each string in list with each instance of char replaced with “” .

How do I remove a specific element from a string array in Java?

Approach:

  1. Get the array and the index.
  2. Form an ArrayList with the array elements.
  3. Remove the specified index element using remove() method.
  4. Form a new array of the ArrayList using mapToInt() and toArray() methods.
  5. Return the formed array.

How do I cut a specific string in Java?

trim() . trim() removes spaces before the first character (which isn’t a whitespace, such as letters, numbers etc.) of a string (leading spaces) and also removes spaces after the last character (trailing spaces).

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How do you remove consonants from a string in Java?

How to remove consonants from a string using regular expressions in Java? Similarly, the following expression matches all the consonants in the given input string. “([^aeiouyAEIOUY0-9\W]+)”; Then you can remove the matched characters by replacing them with the empty string “”, using the replaceAll() method.

How do you remove part of a string in a list Python?

The remove() method removes the first matching element (which is passed as an argument) from the list. The pop() method removes an element at a given index, and will also return the removed item. You can also use the del keyword in Python to remove an element or slice from a list.

How do I remove an item from a list?

Items of the list can be deleted using del statement by specifying the index of item (element) to be deleted. We can remove an item from the list by passing the value of the item to be deleted as the parameter to remove() function. pop() is also a method of list.

How do I remove a string from an array?

There are different methods and techniques you can use to remove elements from JavaScript arrays:

  1. pop – Removes from the End of an Array.
  2. shift – Removes from the beginning of an Array.
  3. splice – removes from a specific Array index.
  4. filter – allows you to programatically remove elements from an Array.

How do I remove a specific element from an array?

Find the index of the array element you want to remove using indexOf , and then remove that index with splice . The splice() method changes the contents of an array by removing existing elements and/or adding new elements.

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How do I remove an element from a string?

The following methods are used to remove a specific character from a string in Python.

  1. By using Naive method.
  2. By using replace() function.
  3. By using slice and concatenation.
  4. By using join() and list comprehension.
  5. By using translate() method.

How do you trim a space between strings in Java?

You can do it like this: string = str. replaceAll(“\s{2,}”,” “); It will replace 2 or more consecutive whitespaces with a single whitespace.