Scanner nextShort() method in Java with Examples
The nextShort(radix) method of java.util.Scanner class scans the next token of the input as a short. If the translation is successful, the scanner advances past the input that matched. If the parameter radix is not passed, then it behaves similarly as nextShort(radix) where the radix is assumed to be the default radix.
Syntax:
public short nextShort()
Parameters: The function accepts a parameter radix which is used to interpret the token as a short value.
Return Value: This function returns the short scanned from the input.
Exceptions: The function throws three exceptions as described below:
- InputMismatchException: if the next token does not matches the Integer regular expression, or is out of range
- NoSuchElementException: throws if input is exhausted
- IllegalStateException: throws if this scanner is closed
Below programs illustrate the above function:
Program 1:
Java
import java.util.*;
public class GFG1 {
public static void main(String[] argv)
throws Exception
{
String s = "Gfg 9 + 6 = 12.0" ;
Scanner scanner = new Scanner(s);
while (scanner.hasNext()) {
if (scanner.hasNextShort()) {
System.out.println( "Found Short value :"
+ scanner.nextShort());
}
else {
System.out.println( "Not found short value :"
+ scanner.next());
}
}
scanner.close();
}
}
|
Output:
Not found short value :Gfg
Found Short value :9
Not found short value :+
Found Short value :6
Not found short value :=
Not found short value :12.0
Program 2:
Java
import java.util.*;
public class GFG1 {
public static void main(String[] argv)
throws Exception
{
String s = "Gfg 9 + 6 = 12.0" ;
Scanner scanner = new Scanner(s);
while (scanner.hasNext()) {
if (scanner.hasNextShort()) {
System.out.println( "Found Short value :"
+ scanner.nextShort( 12 ));
}
else {
System.out.println( "Not found short value :"
+ scanner.next());
}
}
scanner.close();
}
}
|
Output:
Not found short value :Gfg
Found Short value :9
Not found short value :+
Found Short value :6
Not found short value :=
Not found short value :12.0
Program 3: To demonstrate InputMismatchException
Java
import java.util.*;
public class GFG1 {
public static void main(String[] argv)
throws Exception
{
try {
String s = "Gfg 9 + 6 = 12.0" ;
Scanner scanner = new Scanner(s);
while (scanner.hasNext()) {
System.out.println( "Next Short value :"
+ scanner.nextShort());
}
scanner.close();
}
catch (Exception e) {
System.out.println( "Exception thrown: " + e);
}
}
}
|
Output:
Exception thrown: java.util.InputMismatchException
Program 4: To demonstrate NoSuchElementException
Java
import java.util.*;
public class GFG1 {
public static void main(String[] argv)
throws Exception
{
try {
String s = "Gfg" ;
Scanner scanner = new Scanner(s);
for ( int i = 0 ; i < 5 ; i++) {
if (scanner.hasNextShort()) {
System.out.println( "Found Short value :"
+ scanner.nextShort());
}
else {
System.out.println( "Not found short value :"
+ scanner.next());
}
}
scanner.close();
}
catch (Exception e) {
System.out.println( "Exception thrown: " + e);
}
}
}
|
Output:
Not found short value :Gfg
Exception thrown: java.util.NoSuchElementException
Program 5: To demonstrate IllegalStateException
Java
import java.util.*;
public class GFG1 {
public static void main(String[] argv)
throws Exception
{
try {
String s = "Gfg 9 + 6 = 12.0" ;
Scanner scanner = new Scanner(s);
scanner.close();
System.out.println( "Scanner Closed" );
System.out.println( "Trying to get "
+ "next Short value" );
while (scanner.hasNext()) {
if (scanner.hasNextShort()) {
System.out.println( "Found Short value :"
+ scanner.nextShort());
}
else {
System.out.println( "Not found short value :"
+ scanner.next());
}
}
}
catch (Exception e) {
System.out.println( "Exception thrown: " + e);
}
}
}
|
Output:
Scanner Closed
Trying to get next Short value
Exception thrown: java.lang.IllegalStateException: Scanner closed
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html#nextShort()
Last Updated :
19 Nov, 2020
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