how to use input in java

1Scanner sc = new Scanner(System.in);  // Create a Scanner object
2String userName = sc.nextLine();//read input string
3int age = sc.nextInt(); //read input integer
4long mobileNo = sc.nextLong(); //read input long
5double cgpa = sc.nextDouble(); //read input double
6System.out.println(userName);//output 

1import java.util.*;
2class a 
3{
4    void main ()
5    {
6        Scanner in = new Scanner(System.in);
7      System.out.print("Please enter you age: ");
8      int age = in.nextInt();
9      System.out.print("Please enter today's date: ");
10      int date = in.nextInt();
11      System.out.print("Please enter current month: ");
12      int month = in.nextInt();
13      System.out.print("Please enter current year: ");
14      int year = in.nextInt();
15    }
16}
17// ENJOY!!!!!!!

1import java.util.Scanner;
2...
3  Scanner console = new Scanner(System.in);
4  int num = console.nextInt();
5  console.nextLine() // to take in the enter after the nextInt() 
6  String str = console.nextLine();

1//For continues reading a line
2import java.util.Scanner; 
3
4Scanner in = new Scanner(System.in); 
5while(in.hasNextLine()) {
6   String line = in.nextLine();
7   System.out.println("Next line is is: " + line); 
8}