Write a program in Java to accept a String from the user. Pass the String to a method First(String str) which displays the first character of each word. Sample Input: Understanding Computer - Computer Applications | Shaalaa.com

Read a 3-character string from input into variable inputString. Declare a Boolean variable isValid and assign isValid with true if the first and second characters of inputString are both digits. Otherwise, assign isValid with false.Ex: If the input is 51x, then isValid is assigned with true, so the output is:Valid stringEx: If the input is 6#@, then isValid is assigned with false, so the output is:Invalid stringNote: Use getline(cin, inputString) to read the entire line from input into inputStri

Basics of Command-Line Input in Java