What can I use instead of a readLine?
What can I use instead of a readLine?
More alternatives:
- Use a Scanner built round System.in , and call Scanner. nextLine.
- Use a Console (obtained from System. console() ) and call Console. readLine.
Does Java have readLine?
The readLine() method of Console class in Java is used to read a single line of text from the console. Parameters: This method does not accept any parameter. Return value: This method returns the string containing the line that is read from the console. It returns null if the stream has ended.
Is BufferedReader faster than scanner?
BufferReader has large buffer of 8KB byte Buffer as compared to Scanner. Scanner is bit slower as it need to parse data as well. BufferReader is faster than Scanner as it only reads a character stream.
What is dis readLine () in Java?
The readLine(String fmt, Object args) method is a static method of Java Console class. It is used to provide a formatted prompt, then reads a single line of text from the console.
Is DataInputStream deprecated?
DataInputStream has been deprecated because it does not properly convert bytes to characters. The alternative shown here will not work for all programs.
How do you input text in Java?
Example of String Input from user
- import java.util.*;
- class UserInputDemo1.
- {
- 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.nextLine(); //reads string.
How do you scan a line in Java?
Example 1
- import java.util.*;
- public class ScannerNextLineExample1 {
- public static void main(String args[]){
- Scanner scan = new Scanner(System.in);
- System.out.print(“Enter Item ID: “);
- String itemID = scan.nextLine();
- System.out.print(“Enter Item price: “);
- String priceStr = scan.nextLine();
What is the difference between readLine and nextLine?
The nextLine() returns String similar to readLine() but the scanner has more utility methods like nextInt(), nextLong() which can be used to directly read numbers from a file instead of converting String to Integer or other Number classes.
Why DataInputStream is deprecated?
DataInputStream has been deprecated because it does not properly convert bytes to characters.
How do you input multiple lines in Java?
Another way to read multiple lines from the console can be done using the synchronized BufferedReader class in Java. The idea is to read each line using the readLine() method and use String. split() to split the line into individual tokens using whitespace as a delimiter. We can also use the StringTokenizer class.
Is Printwriter deprecated?
This package provides a legacy entry point for the javac tool. This package and its contents are deprecated and may be removed in a future release.