Javaメソッドの公範囲の設定方法

Aclass.java

public class Aclass {
	public void method1() {
		System.out.println("Called public Aclass.method1.");
	}

	protected void method2() {
		System.out.println("Called protected Aclass.method2.");
	}

	private void method3() {
		System.out.println("Called private Aclass.method3.");
	}
}

Main.java

import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
		Aclass instance = new Aclass();

		instance.method1();	// → OK
		instance.method2();	// → OK
		//instance.method3();	// → ビルドエラー
    }
}