How do I scan a string in Java with a scanner?

How do I scan a string in Java with a scanner?

Example 1

1. import java.util.*;
2. public class ScannerExample {
3. public static void main(String args[]){
4. Scanner in = new Scanner(System.in);
5. System.out.print(“Enter your name: “);
6. String name = in.nextLine();
7. System.out.println(“Name is: ” + name);
8. in.close();

What is scanner for string?

A simple text scanner which can parse primitive types and strings using regular expressions. A Scanner breaks its input into tokens using a delimiter pattern, which by default matches whitespace. The resulting tokens may then be converted into values of different types using the various next methods.

What for can you use Scanner class in Java?

The Java Scanner class is used to collect user input. Scanner is part of the java. util package, so it can be imported without downloading any external libraries. Scanner reads text from standard input and returns it to a program.

How do you scan an array in Java?

ArrayInputExample2.java

1. import java.util.Scanner;
2. public class ArrayInputExample2.
3. {
4. public static void main(String args[])
5. {
6. int m, n, i, j;
7. Scanner sc=new Scanner(System.in);
8. System.out.print(“Enter the number of rows: “);

How do you take string input from a Scanner class?

Example of next() method

1. import java.util.*;
2. class UserInputDemo2.
3. {
4. public static void main(String[] args)
5. {
6. Scanner sc= new Scanner(System.in); //System.in is a standard input stream.
7. System.out.print(“Enter a string: “);
8. String str= sc.next(); //reads string before the space.

What is Scanner method in java?

Scanner is a class in java. util package used for obtaining the input of the primitive types like int, double, etc. next() function returns the next token/word in the input as a string and charAt(0) function returns the first character in that string.

How do you display strings?

The most basic way to display a string in a Java program is with the System. out. println() statement. This statement takes any strings and other variables inside the parentheses and displays them.

How does scanner class in Java really work?

To create an object of Scanner class,we usually pass the predefined object System.in,which represents the standard input stream.

To read numerical values of a certain data type XYZ,the function to use is nextXYZ ().

To read strings,we use nextLine ().

To read a single character,we use next ().charAt (0).

What is the use of scanner class in Java?

The java.util.Scanner class is a simple text scanner which can parse primitive types and strings using regular expressions.Following are the important points about Scanner −. A Scanner breaks its input into tokens using a delimiter pattern, which by default matches whitespace.

How to import scanner class?

– Import Scanner class at the top of your Java program. We must import all classes that we use in our Java program. – Create an object of Scanner class. Say Scanner in = new Scanner (System.in);. – Use Scanner class methods as per your data type to read input from user. Say to read integer from user use in.nextInt ();, similarly use others.

How do you import a scanner in Java?

Import the Scanner class. You can either choose to import the java.util.Scanner class or the entire java.util package. To import a class or a package, add one of the following lines to the very beginning of your code: import java.util.Scanner; // This will import just the Scanner class.