Class.forName()和ClassLoader 区别

Class.forName加载类时将类进了初始化，而ClassLoader的loadClass并没有对类进行初始化，只是把类加载到了虚拟机中。



package demo88;

public class Demo {
  
	
  
  public static int num = 2;
  static {
	  System.out.println(1);
	  System.out.println(num);
  }
   
  public static void method(){
	  System.out.println(3);
  }
   
}


package demo88;

public class Demo2 {

	   
	   public static void main(String[] args) {
		try {
			//ClassLoader.getSystemClassLoader().loadClass("demo88.Demo");//
			Class.forName("demo88.Demo"); //1  2
			
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}