// The difference between String and char. // 1) String is a class. // 2) char is a data type (int, long, float, double, boolean, short, byte, char). // 3) String str =... , str is a reference to ...

System.out.println(s1.substring(1, 6)); //substring (double parameter)(6-1) System.out.println(s1.trim()); //Trim removes spaces start of the string and end of the string but not middle of the string ...

Rewrite object-oriented code using functional techniques. Get started with lambdas, method references, functional interfaces, and the Streams API in Java Welcome back to this two-part tutorial ...