Jun 16, 2013 · \b (\\b in a string to escape the backslash) matches a "word boundary", i.e. the edges of a word. The advantage over using blank spaces is it will properly match things like "sentence with a keyword."

List<String> words = Arrays.asList(splitWords); System.out.println(words.contains("place")); Alternatively, you could use the indexOf(String str) method like so: if (str.indexOf("place") > 0) { System.out.println("String Exists"); }

Feb 16, 2024 · In Java string manipulation, searching for specific words is a fundamental task. Regular expressions (regex) offer a powerful and flexible approach to achieve this search. It matches the patterns simply by comparing substrings.

Apr 24, 2019 · Step 1: Use String splitting by space to put all elements in an array. Step 2: Find the indexes of the elements you're interested in. Step 3: Parse each element String into the required type (Integer and Boolean) That should get you started!

Dec 2, 2024 · In this article, we will explore essential methods like indexOf (), contains (), and startsWith () to search characters and substrings within strings in Java. 1. Using indexOf(char c) The indexOf() searchesfor the first occurrence of a character from the beginning of the string and returns its index. If the character is not found, it returns -1.

May 13, 2023 · In this code example we are going to learn how to find a specific word or text inside a string. For this example we will utilize the java.lang.String class. The String class provides a method called String.indexOf() .

Explore techniques to check if a string contains specific words in Java with illustrative examples.

Aug 24, 2021 · To find a word in the string, we are using indexOf () and contains () methods of String class. The indexOf() method is used to find an index of the specified substring in the present string. It returns a positive integer as an index if substring found else returns -1.

Learn how to use Java's String.contains () method to check for exact word matches, with code examples and common mistakes.

Nov 21, 2012 · First split your lines on "\n" to get an array with individual words. I would rather use StringBuilder or StringBuffer if I want to modify my string on each iteration. Now, on each iteration, check whether your StringBuilder already contains that word. If …