String Methods for Character Extraction in Java

How to Check If a String is an Integer in Java

Variables, input, and casting (Java)Prompt the user to input an integer, a double, a character, and a string, storing each into separate variables. Then, output those four values on a single line separated by a space. (Submit for 2 points).Enter integer: 99Enter double: 3.77Enter character: zEnter string: Howdy99 3.77 z Howdy

Java: String Data Type

Java String concat() Method with Examples - GeeksforGeeks

String Best Practices in Java