Scanner ioException() method in Java with Examples
The ioException() method of java.util.Scanner class returns the IOException last thrown by this Scanner’s underlying Readable. This method returns null if no such exception exists.
Syntax:
public IOException ioException()
Return Value: This function returns the last exception thrown by this scanner’s readable.
Below programs illustrate the above function:
Program 1:
import java.util.*;
public class GFG1 {
public static void main(String[] argv)
throws Exception
{
String s = "gfg geeks!" ;
Scanner scanner = new Scanner(s);
System.out.println( "" + scanner.nextLine());
System.out.println( "" + scanner.ioException());
scanner.close();
}
}
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Program 2:
import java.util.*;
public class GFG1 {
public static void main(String[] argv)
throws Exception
{
String s = "gopal dave!" ;
Scanner scanner = new Scanner(s);
System.out.println( "" + scanner.nextLine());
System.out.println( "" + scanner.ioException());
scanner.close();
}
}
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Reference: https://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html#ioException()
Last Updated :
16 Oct, 2018
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