JAVA 복습하기

1) 싱글톤 패턴으로 회사 객체 구현하기

package ch18;

public class Company {

	
	private Company() {}
	
	private static Company instance = new Company();

	
	public static Company getInstance() {
		if(instance == null) {
			instance = new Company();
		}
		return instance;
	}
}

package ch18;

public class CompanyTest {

	public static void main(String[] args) {

		
		Company company1 = Company.getInstance();
		
		Company company2 = Company.getInstance();
		
		System.out.println(company1);
		System.out.println(company2);
		
		
	}

}

어렵다. 봐도봐도 모르겠다 ㅠㅠ