Example:

package javaapplication;

import java.util.Scanner;

/**
 *
 * @author Rathorji
 */
public class JavaApplication {

    /**
     * @param args the command line arguments
     */

    public static void main(String[] args) {
        int a;
        float b;
        String s;

        Scanner sc = new Scanner(System.in);

        System.out.println("Enter a string");
        s = sc.nextLine();  //scans the data for input of string
        System.out.println("You entered string " + s);

        System.out.println("Enter an integer");
        a = sc.nextInt();   //scans the data for input of integer
        System.out.println("You entered integer " + a);

        System.out.println("Enter a float");
        b = sc.nextFloat();  //scans the data for input of float
        System.out.println("You entered float " + b);

    }

}


output:

run:
Enter a string
 stint
You entered string stint
Enter an integer
10
You entered integer 10
Enter a float
10.0
You entered float 10.0