public?class?HelloWorld?{
?????String?name;?//?聲明變量name	
?????String?sex;?//?聲明變量sex	
?????static?int?age;//?聲明靜態變量age????????
?????//?構造方法	
?????public?HelloWorld()?{
?????????name?=?"bighead";
?????????System.out.println("通過構造方法初始化name");		
?????}????????
?????//?初始化塊	
?????{?		
?????????System.out.println("通過初始化塊初始化sex");
?????????sex?=?"男";	
?????}????????
?????//?靜態初始化塊	????
?????static?{?		
?????????System.out.println("通過靜態初始化塊初始化age");
?????????age?=?20;	
?????}	
?????public?void?big(){
???????System.out.print("姓名："?+?name?+?"，性別："?+?sex?);
?????}????	
?????public?static?void?show()?{	
???????System.out.println("，年齡："?+?age);	
?????}????	
?????public?static?void?main(String[]?args)?{
?????//?創建對象????????
???????HelloWorld?a?=?new?HelloWorld();
???????//?調用對象的big方法????????
????????a.big();????????		
?????????//直接調用靜態方法show????????
	???show();????????	
???}
}