GitHub

Longest Substring Without Repeating Characters.java

// Time Complexity: O(n²) (due to substring creation and window reset) } else if (right == s.length() - 1 && !(map.containsKey(s ...
InfoWorld

String comparisons in Java

Java’s String class encapsulates an array of bytes. A byte can be converted to a char, in which case, String becomes an array ...
GitHub

rec2.1 /Arrays_String_InnerClasses

System.out.println(s1.substring(2)); //from 2nd index to last System.out.println(s1.substring(0, 1)); System.out.println(s1 ...