java-interview-questions | 1000 Java Interview Questions | DB Client library

public static void main(String[] args) {
		// Calendar is abstract
		// Calendar calendar = new Calendar(); //COMPILER ERROR

		Calendar calendar = Calendar.getInstance();

		calendar.set(Calendar.DATE, 24);
		calendar.set(Calendar.MONTH, 8);// 8 - S  

public static void main(String[] args) {
		Map map = new HashMap();
		map.put("key1", "value1");
		map.put("key2", "value2");
		map.put("key3", "value3");

		Iterator iterator = map.keySet().iterator();

		while (iterator.hasNext()) {
			System.out.p  

@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Client other = (Client) obj;
		if (id != other.id)
			return false;
		return