Java Scanner nextLine() Method

The nextLine() method of Java Scanner class is used to get the input string that was skipped of the Scanner object.

Syntax

Following is the declaration of nextLine() method:

Parameter

This method does not accept any parameter.

Returns

The nextLine() method returns the the line that was skipped.

Exceptions

NoSuchElementException- It will thrown this Exception if no line was found.

IllegalStateException- It will thrown this Exception if the innvocation is done after Scanner is closed.

Compatibility Version

Java 1.5 and above

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();
 	     double price = Double.valueOf(priceStr);		
 	     System.out.println("Price of Item "+itemID + " is $"+price);
    	     scan.close();
           }  
} 

Output:

Enter Item ID: A151
Enter Item price: 3473.75
Price of Item A151 is $3473.75

Example 2

import java.io.File;
import java.io.FileNotFoundException;
import java.util.*;  
public class ScannerNextLineExample2 {  
     public static void main(String args[]) throws FileNotFoundException{ 
    	      // Declare File object
 		File file = new File("/home/javatpoint/Desktop/ABHISHEK/AngularJS/Index/abc.txt");
 		// initialize the scanner
 		Scanner scan = new Scanner(file);
 		// iterate through the file line by line
 		while(scan.hasNextLine()){
 			// print the contents of a file by line
 			System.out.println(scan.nextLine());
 		}
 		// close the scanner object;
 		scan.close();
     }  
} 

Output:

hasNextLine
public boolean hasNextLine()
IllegalStateException

Example 3

import java.util.*;
public class ScannerNextLineExample3 {  
    public static void main(String args[]){   	
    	  String str = "Facebook.com \n 1 + 1 = 2.0 \n JavaTpoint.com ";
        Scanner scanner = new Scanner(str);
        //Print the next line
        System.out.println(scanner.nextLine());
        //Check if there is a next line again
        System.out.println(scanner.hasNextLine());
        System.out.println(scanner.nextLine());
        //Check if there is a next line again
        System.out.println(scanner.hasNextLine());
        System.out.println(scanner.nextLine());
        //Check if there is a next line again
        System.out.println(scanner.hasNextLine());
        scanner.close();
	  }  
}

Output:

Facebook.com 
true
 1 + 1 = 2.0 
true
 JavaTpoint.com 
false

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