how to define both Long and String in one word in java code example

Example 1: turning a sentence to an array java

String s = "This is a sample sentence.";
String[] words = s.split("\\s+");
for (int i = 0; i < words.length; i++) {
    // You may want to check for a non-word character before blindly
    // performing a replacement
    // It may also be necessary to adjust the character class
    words[i] = words[i].replaceAll("[^\\w]", "");
}

Example 2: what are strings in java

Strings are an array of characters, but not in Java.