How do you check if a list contains a substring in Java?

How do you check if a list contains a substring in Java?

“check if a list contains a string java” Code Answer

1. String search = “A”;
2. for(String str: myList) {
3. if(str. trim(). contains(search))
4. return true;
5. }
6. return false;

How do you find a substring in an ArrayList?

How to search for a string in an ArrayList in java?

1. Get the array list.
2. Using the for-each loop get each element of the ArrayList object.
3. Verify whether each element in the array list contains the required string.
4. If so print the elements.

How do you check if a String contains any strings from a list?

Using String. contains() method for each substring. You can terminate the loop on the first match of the substring, or create a utility function that returns true if the specified string contains any of the substrings from the specified list.

How do you filter a string in Java?

Filter a String in Java

1. Using String. replaceAll() method.
2. Using Java 8. In Java 8 and above, use chars() or codePoints() method of String class to get an IntStream of char values from the given sequence.
3. Using CharMatcher by Guava. Several third-party libraries provide utility methods for working with strings.

What does .filter do in Java?

Overview of the stream filter method in java The filter() function of the Java stream allows you to narrow down the stream’s items based on a criterion. If you only want items that are even on your list, you can use the filter method to do this.

How do you check if an array of strings contains a substring?

To check if a JavaScript Array contains a substring:

1. Call the Array. findIndex method, passing it a function.
2. The function should return true if the substring is contained in the array element.
3. If the conditional check succeeds, Array. findIndex returns the index of the array element that matches the substring.