//Sample08_028.java
class Sample08_028{

	static int num_01 = 999;

	static int method_01(){
		int num_01 = 20;
		return num_01;
	}

	static int method_02(){
		return num_01;
	}

	static int method_03(){
		int num_01 = 30;
		return Sample08_028.num_01;
	}

	public static void main(String[] args){
		int number;

		number = num_01;
		System.out.println("class_var: " + number);

		number = method_01();
		System.out.println("method_01: " + number);

		number = method_02();
		System.out.println("method_02: " + number);

		number = method_03();
		System.out.println("method_03: " + number);

	}
}