how to 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!!!!!!!

1Scanner sc = new Scanner(System.in);
2String s = sc.next();
3int n = sc.nextInt();
4double d = sc.nextDouble();
5float f = sc.nextFloat();
6
7// more fast way
8BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
9String s = br.readLine(); // read line
10int c = br.read();        // read single char

1import java.util.*;  
2class UserInputDemo   
3{  
4public static void main(String[] args)  
5{  
6Scanner sc= new Scanner(System.in);    //System.in is a standard input stream  
7System.out.print("Enter first number- ");  
8int a= sc.nextInt();  
9System.out.print("Enter second number- ");  
10int b= sc.nextInt();  
11System.out.print("Enter third number- ");  
12int c= sc.nextInt();  
13int d=a+b+c;  
14System.out.println("Total= " +d);  
15}  
16}  

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();

1import java.util.*; //or java.util.scanner
2Scanner doit = new Scanner(System.in);//Name the scanner
3System.out.println("Username:");//It will specify username
4String username = doit.next();//Use scanner and add .next for string .nextInt for int and follows
5