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Scanner Class

//Exception while reading through the Scanner class.

import java. util.*;

class A
public static void main(String... ar)
Scanner s = new Scanner(System.in); 		//reading user inputs from the keyboard.

System.out.println("Int is " + s.nextBoolean()); //trying to convert an int value to a boolean value

else if(s.hasNext())
System.out.println("String "+ s.next());


Output -

Exception in thread "main" java.util.InputMismatchException
        at java.util.Scanner.throwFor(Unknown Source)
        at java.util.Scanner.next(Unknown Source)
        at java.util.Scanner.nextBoolean(Unknown Source)
        at A.main(Scanner6.java:16)

Program Analysis

In the preceding code, we are reading LIVE user inputs from the keyboard and as soon as user entered an int value of 12.

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