JavaÀà±»¼ÓÔØÊ±Ö´ÐеÄ˳ÐòÎÊÌâ
public class Parent
{
//1
static int a = 1;
//2
static
{
a = 10;
System.out.println("parent static code");
}
//4
public Parent()
{
System.out.println("Parent constructor");
System.out.println("Parent a=" + a);
}
public static void main(String[] args)
{
System.out.println("***************");
Parent c = new Child();
}
}
class Child extends Parent
{
static int a = 2;
//3
static
{
a = 20;
System.out.println("child static code");
}
//5
public Child()
{
System.out.println("Child constructor");
System.out.println("Child var a=" + a);
}
}
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run:
parent static code
***************
child static code
Parent constructor
Parent a=10
Child constructor
Child var a=20
BUILD SUCCESSFUL (total time: 0 seconds)
Java
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import java.awt.Point;
import java.awt.event.ActionEvent;
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