[java] Scanner method to get a char

What is the Scanner method to get a char returned by the keyboard in Java.

like nextLine() for String, nextInt() for int, etc.

You can use the Console API (which made its appearance in Java 6) as follows:

Console cons = System.console();
if(cons != null) {
  char c = (char) cons.reader().read();  // Checking for EOF omitted
  ...
}

If you just need a single line you don't even need to go through the reader object:

String s = cons.readLine();

sc.next().charat(0).........is the method of entering character by user based on the number entered at the run time

example: sc.next().charat(2)------------>>>>>>>>

Scanner sc = new Scanner (System.in)
char c = sc.next().trim().charAt(0);

Console cons = System.console();

The above code line creates cons as a null reference. The code and output are given below:

Console cons = System.console();
if (cons != null) {
    System.out.println("Enter single character: ");
    char c = (char) cons.reader().read();
    System.out.println(c);
}else{
    System.out.println(cons);
}

Output :

null

The code was tested on macbook pro with java version "1.6.0_37"

Java's Scanner class does not have a built in method to read from a Scanner character-by-character.

http://java.sun.com/javase/6/docs/api/java/util/Scanner.html

However, it should still be possible to fetch individual characters from the Scanner as follows:

Scanner sc:

char c = sc.findInLine(".").charAt(0);

And you could use it to fetch each character in your scanner like this:

while(sc.hasNext()){
    char c = sc.findInLine(".").charAt(0);
    System.out.println(c); //to print out every char in the scanner
}

The findInLine() method searches through your scanner and returns the first String that matches the regular expression you give it.