浅谈Java中的重载,重写,多态，静态绑定、动态绑定

public class TstaticOverload {
	static int height;
	TstaticOverload() {
		System.out.println ("Planting a seedling");
		height = 0;
	}
	TstaticOverload(int initialHeight) {
		height = initialHeight;
		System.out.println("Creating new Tree that is "+ height + " feet tall");
	}
	static void info() {
		System.out.println("Tree is " + height + " feet tall");
	}
	static void info(String s) {
		System.out.println(s + ": Tree is " + height + " feet tall");
	}
}

public class testSO {
	public static void main (String [] args) {
		TstaticOverload t = new TstaticOverload(5);
		TstaticOverload.info();
		TstaticOverload.info("overloading method");
		new TstaticOverload();
	}
}

out： 
Creating new Tree that is 5 feet tall 
Tree is 5 feet tall 
overloading method: Tree is 5 feet tall 
Planting a seedling 

public class StaticSupper {
	public static String staticGet() {
		return "Base staticGet()";
	}
	public String dynamicGet() {
		return "Base dynamicGet()";
	}
}
class StaticSub extends StaticSupper {
	public static String staticGet() {
		return "Sub staticGet()";
	}
	public String dynamicGet() {
		return "Sub dynamicGet()";
	}
}
class StaticMub extends StaticSupper {
	public static String staticGet() {
		return "Mub staticGet()";
	}
	public String dynamicGet() {
		return "Mub dynamicGet()";
	}
}

public class StaticPolymorphism { 
  public static void main (String [] args) { 
    StaticSupper sup1 = new StaticSub(); 
    System.out.println(sup1.staticGet()); 
    System.out.println(sup1.dynamicGet()); 
     
    StaticSupper sup2 = new StaticMub(); 
    System.out.println(sup2.staticGet()); 
    System.out.println(sup2.dynamicGet()); 
  } 
} 

out： 
Base staticGet() 
Sub dynamicGet() 
Base staticGet() 
Mub dynamicGet()