Example of IllegalStateException present in java.lang package.

IllegalStateExceptionDemo.java

package com.javamultiplex.java.lang.exceptions;

import java.util.Arrays;
import java.util.Iterator;
import java.util.List;

/**
 * @author Rohit Agarwal
 * @version 1.0
 * @category java.lang/Exception
 * @since JDK 1.1
 */
public class IllegalStateExceptionDemo {
	public static void main(String[] args) {

		String[] names = { "Rohit", "Bhavna", "Shivani" };
		List<String> list = Arrays.asList(names);
		Iterator<String> iterator = list.iterator();
		while (iterator.hasNext()) {
			/*
			 * IllegalStateException will be thrown because without getting any
			 * element we are removing it.
			 */
			iterator.remove();
		}
	}
}