Java Scanner - findWithinHorizon() Method
The java.util.Scanner.findWithinHorizon() method attempts to find the next occurrence of a pattern constructed from the specified string, ignoring delimiters.
Syntax
public String findWithinHorizon(String pattern, int horizon)
Parameters
pattern |
Specify a string specifying the pattern to search for. |
horizon |
Specify the search horizon. |
Return Value
Returns the text that matched the specified pattern.
Exception
- Throws IllegalStateException, if the scanner is closed.
- Throws IllegalArgumentException, if horizon is negative.
Example:
In the example below, the java.util.Scanner.findWithinHorizon() method returns next occurrence of the specified pattern constructed from the specified string, ignoring delimiters and within given horizon.
import java.util.*;
public class MyClass {
public static void main(String[] args) {
//String to scan
String MyString = "Hello Cello Hullo Hallo Jello";
//creating a Scanner
Scanner MyScan = new Scanner(MyString);
//find and print Hullo, with horizon 10
System.out.println(MyScan.findWithinHorizon("Hullo", 10));
//find and print Hullo, with horizon 20
System.out.println(MyScan.findWithinHorizon("Hullo", 20));
//prints the remaining portion of the line
System.out.println(MyScan.nextLine());
//close the scanner
MyScan.close();
}
}
The output of the above code will be:
null Hullo Hallo Jello
❮ Java.util - Scanner
