in); System.out.println("Please enter the name of a month to know how many days it contains: "); String Month_Name = Demo_Input.nextLine(); switch (Month_Name) { // Case statements case "January": case "March": case "May": case "July": case "September": case "November": ...
The hasNextLine() method returns true if there is another line in the input of this scanner without advancing the file read position. To read data and move on to the next line, we should use the nextLine() method. This method moves the scanner past the current line and returns the rest...
String str = sc.next(); // read input as String String s = sc.nextLine(); // read whole line as String */}} Using the BufferedReader class However, the Scanner class is slow and may cause a "timelimit exceeded". We can read the input faster with the BufferedReader class. The cl...
To convert a string to a long in Java, you can use the parseLong() method of the java.lang.Long class. This method parses the string as a signed decimal long, and returns the resulting long value.
Best Practices to Prevent NoSuchElementException: No Line Found Error in Java Input Validation Ensure proper validation of input sources before attempting to read lines. Use methods like hasNextLine() to check for the existence of input before invoking nextLine(). Try-Catch Handling Wrap co...
arpit.java2blog; import java.util.Scanner; //import util hpackage for Scanner class public class Employee { public static void main(String args[]) { int id; String name; float salary; Scanner s=new Scanner(System.in); System.out.println("Enter Employee name:"); name = s.nextLine();...
In this tutorial, you will learn how to sort ArrayList in Java. We will write several java programs to accomplish this. We can use Collections.sort() method to sort an ArrayList in ascending and descending order. //Sorting in Ascending orderArrayList num
So, this is exactly what we’re going to do – iterate through the lines without holding all of them in memory. 3. Streaming Through the File Now, let’s explore different ways of reading a given file portion by portion. 3.1. Using Scanner Here, we’re going to use a java.util....
Scannerscan=newScanner(System.in); System.out.print("Enter First String : "); str1=scan.nextLine(); System.out.print("Enter Second String : "); str2=scan.nextLine(); if(str1.compareTo(str2)>0){ System.out.println("First String is Greater than Second String."); ...
Scanner scan = new Scanner(System.in); String text = ""; System.out.println("Enter some text:"); // So long the use not write 'quit' the loop will keep run while(!text.equals("quit")){ text = scan.nextLine(); } 11th May 2019, 5:14 PM ...