Why does nextLine not take input?
Table of Contents
Why does nextLine not take input?
nextInt() method – it only reads the int value. So when you continue reading with input. nextLine() you receive the “\n” Enter key. So to skip this you have to add the input.
Why SC nextLine is not working in Java?
You have to do nextLine() because the input stream still has a newline character and possibly other non-int data on the line. Calling nextLine() reads in whatever data is left, including the enter the user pressed between entering an int and entering a String.
What is the use of nextLine () method in Scanner class?
The nextLine() method of the java. util. Scanner class scans from the current position until it finds a line separator delimiter. The method returns the String from the current position to the end of the line.
How do you take String input from a Scanner?
Example of next() method
- import java.util.*;
- class UserInputDemo2.
- {
- public static void main(String[] args)
- {
- Scanner sc= new Scanner(System.in); //System.in is a standard input stream.
- System.out.print(“Enter a string: “);
- String str= sc.next(); //reads string before the space.
Why does scan nextLine not work?
As you can see, the nextLine() method skips the input to be read and takes the name of Mother in the place of Father. Hence the expected output does not match with the actual output.
How do I make the scanner go to the next line?
nextLine() method advances this scanner past the current line and returns the input that was skipped. This method returns the rest of the current line, excluding any line separator at the end. The position is set to the beginning of the next line.
Why do we use SC nextLine in Java?
The nextLine() method of java. util. Scanner class advances this scanner past the current line and returns the input that was skipped. Since this method continues to search through the input looking for a line separator, it may search all of the input searching for the line to skip if no line separators are present.
What is the difference between next () and nextLine ()?
Their differences are… next() can read the input only till the space. nextLine() reads input including space between the words (that is, it reads till the end of line \n). Once the input is read, nextLine() positions the cursor in the next line.
How do I turn off the scanner nextLine?
You can cancel active requests for input either by interrupting the thread, or by calling cancel(), which canceles the currently waiting request. It uses Semaphores and threads to create a blocking nextLine() method that can be interrupted/canceled elsewhere.
What is difference between next () and nextLine ()?
next() can read the input only till the space. It can’t read two words separated by space. Also, next() places the cursor in the same line after reading the input. nextLine() reads input including space between the words (that is, it reads till the end of line \n).
Which scanner class method reads a string?
nextLine
Scanner Class Methods
| Method | Description |
|---|---|
| nextFloat() | Reads a float value from the user |
| nextInt() | Reads an int value from the user |
| nextLine() | Reads a String value from the user |
| nextLong() | Reads a long value from the user |