对象创建成本的比较

public class CreateObject{
public static void main(String[] arg){
System.out.println("create light object!");
long start=System.currentTimeMillis();
Light light=new Light(5);
long end=System.currentTimeMillis();
long time=end-start;
System.out println(time);

System.out.println("create heavy object!");
long start1=System.currentTimeMillis();
Heavy heavy=new Heavy(5,false);
long end1=System.currentTimeMillis();
long time1=end1-start1;
System.out println(time1);
}
}

class Light{
private int val;
private boolean hasdata;
private boolean state;
public Light(int val){
  this.val=val;
  this.hasdata=true;
  this.state=false;
}
}

class Heavy extends Der2{
public Heavy(int a,boolean b){
  super(a,b);
}
}

class Der2 extends Der1{
private boolean state;
private boolean hasdata=true;
public Der2(int a,boolean b){
  super(a);
  this.state=b;
}
}

class Der1 extends Base{
public Der1(int a){
  super(a);
}
}

class Base{
private int val;
public Base(int a){
  this.val=a;
}
}