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/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
class IntFrom0to1 {
	public class InvalidValueException extends Exception {
		public InvalidValueException(String message) {
			super(message);
		}
	}
 
	int value;
	public IntFrom0to1(int value) throws InvalidValueException {
		if(value != 0 && value != 1)
			throw new InvalidValueException("Value is out of range");
		this.value = value;
	}
}
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) 
	{
 
			IntFrom0to1 a = new IntFrom0to1(0);
			IntFrom0to1 b = new IntFrom0to1(2);
 
 
	}
}
 

Main.java:28: error: unreported exception IntFrom0to1.InvalidValueException; must be caught or declared to be thrown
			IntFrom0to1 a = new IntFrom0to1(0);
			                ^
Main.java:29: error: unreported exception IntFrom0to1.InvalidValueException; must be caught or declared to be thrown
			IntFrom0to1 b = new IntFrom0to1(2);
			                ^
2 errors

Standard output is empty