Java Scanner hasNextShort() Method

The hasNextShort() is a Java Scanner class method which is used to check the next token in this scanner's input can be interpreted as a short value in the default radix or not. It returns true if it is interprated as a short value, otherwise returns false. There is two different types of Java hasNextShort() method which can be differentiated depending on its parameter. These are:

Java Scanner hasNextShort() Method
Java Scanner hasNextShort(int radix) Method

hasNextShort() Method:

This is a Java Scanner class method which is used to check the next token in this scanner's input can be interpreted as a short value in the default radix using the nextShort() method.

hasNextShort(int radix) Method:

This is an inbuilt method of Java Scanner class which is used to check the next token in this scanner's input can be interpreted as a short value in the specified radix using the nextShort() method.

Syntax

Following is the declaration of hasNextShort() method:

public boolean hasNextShort()
public boolean hasNextShort(int radix)

Parameter

DataType	Parameter	Description	Required/Optional
int	radix	It is used to interpret the token as a short value.	Required

Returns

The hasNextShort() method returns true if and only if this scanner's next token is a valid short value.

Exceptions

IllegalStateException- This method throws exception if the innvocation is done after the scanner has been closed.

IllegalArgumentException- It throws this exception if the specified radix is out of range.

Compatibility Version

Java 1.5 and above

Example 1

import java.util.*;
public class ScannerHasNextShortExample1 {  
	public static void main(String[] args) {
		String str = "Instagram.com ";
	      Short sh = 1;
	      str = str + sh;
	      Scanner scanner = new Scanner(str);	      
	      //We use US locale in order to be able to identify short in a string
	      scanner.useLocale(Locale.US);
	      while (scanner.hasNext()) {
	         //Check if the scanner's next token is a short value
	         System.out.println("Is Short Value: "+scanner.hasNextShort());
	         System.out.println("Scan String: "+scanner.next());
	      }
	      scanner.close();
	}
}

Output:

Is Short Value: false
Scan String: Instagram.com
Is Short Value: true
Scan String: 1

Example 2

import java.util.*;
public class ScannerHasNextShortExample2 {  
	public static void main(String[] args) {
		//Initialize the scanner
		Scanner scan = new Scanner(" 22 23 JavaTpoint -11 -7 1B ");			
		while(scan.hasNext()){
			//Check for short data type
			if(scan.hasNextShort(8)){
				//Print short value
				System.out.println("Found a short: "+scan.next());
			}
			else{
			      //Scan the next token
				scan.next();
			}
		}
		scan.close();
	}
}

Output:

Found a short: 22
Found a short: 23
Found a short: -11
Found a short: -7

Example 3

import java.util.*;
public class ScannerHasNextShortExample3 {  
	public static void main(String[] args) {
		String str = " 44 23 JavaTpoint -22 -9 4B ";
	      Short sh = 1;
	      str = str + sh;
		//Initialize the scanner
		Scanner scan = new Scanner(str);			
		while(scan.hasNext()){
			//Check for short data type
			if(scan.hasNextShort(5967597)){
				//Print short value
				System.out.println("Found a short: "+scan.next());
			}
			else{
				//Scan the next token
				scan.next();
			}
		}
		scan.close();
	}
}

Output:

Exception in thread "main" java.lang.IllegalArgumentException: radix:5967597
	at java.base/java.util.Scanner.setRadix(Scanner.java:1368)
	at java.base/java.util.Scanner.hasNextShort(Scanner.java:2041)
	at myPackage.ScannerHasNextShortExample3.main(ScannerHasNextShortExample3.java:12)

Example 4

import java.util.*;
public class ScannerHasNextShortExample4 {  
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		System.out.println("Give me a bunch of numbers in a line (or 'exit')");
		while (!sc.hasNext("exit")) {
		    Scanner lineSc = new Scanner(sc.nextLine());
		    int sum = 0;
		    while (lineSc.hasNextShort()) {
		        sum += lineSc.nextShort();
		    }
		    System.out.println("Sum is " + sum);
		    lineSc.close();
		}
		sc.close();		
	}
}

Output:

Give me a bunch of numbers in a line (or 'exit')
1 3 6 6
Sum is 16

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