Java public method inheritance

ClassA.java

public class ClassA {
	
	public void test()
	{
		System.out.println("Testing...");
		sayHi();
	}
	
	public void sayHi()
	{
		System.out.println("hiA");
	}

}

ClassB.java

public class ClassB extends ClassA {
	
	public void sayHi()
	{
		System.out.println("hiB");
	}

}

Runner.java

public class Runner {

	public static void main(String[] args) {
		
		ClassB b = new ClassB();
		b.test();

	}

}

runtime output

Testing...
hiB