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업데이트 코드, Error에 따르면 내부 클래스의 잘못된 static decleration이라고합니다. Mobile.mymobile 수정 자 'static은 상수 변수 decularations에서만 허용됩니다 (Line 75, public static void main (String [] args) {, 이것은 무엇을 의미합니까 ??Java 오류, 생성자 Mobile 주어진 유형에 적용 할 수 없습니다. 이것은 무엇을 의미 하는가?
내 코드 : 나는 완전히 상실하고 같이
/**
* to write a simple java class Mobile that models a mobile phone.
*
* @author (jamal)
* @version (14/10/13)
*/
public class Mobile
{
// type of phone
private String phonetype;
// size of screen in inches
private int screensize;
// menory card capacity
private int memorycardcapacity;
// name of present service provider
private String serviceprovider;
// type of contract with service provider
private int typeofcontract;
// camera resolution in megapixels
private int cameraresolution;
// the percentage of charge left on the phone
private int checkcharge;
// wether the phone has GPS or not
private String GPS;
// instance variables - replace the example below with your own
private int x;
// The constructor method
public Mobile(String mobilephonetype, int mobilescreensize,
int mobilememorycardcapacity,int mobilecameraresolution,String mobileGPS, String newserviceprovider) {
this.phonetype = mobilephonetype;
this.screensize = mobilescreensize;
this.memorycardcapacity = mobilememorycardcapacity;
this.cameraresolution = mobilecameraresolution;
this.GPS = mobileGPS;
// you do not use this ones during instantiation,you can remove them if you do not need or assign them some default values
//this.serviceprovider = newserviceprovider;
//this.typeofcontract = 12;
//this.checkcharge = checkcharge;
Mobile samsungPhone = new Mobile(
"Samsung" // String mobilephonetype
, 1024 // int mobilescreensize
, 2 // int mobilememorycardcapacity
, 8 // int mobilecameraresolution
, "GPS" //String mobileGPS
, "verizon" // String newserviceprovider
);
//typeofcontract = 12;
//checkcharge = checkcharge;
}
// A method to display the state of the object to the screen
public void displayMobileDetails() {
System.out.println("phonetype: " + phonetype);
System.out.println("screensize: " + screensize);
System.out.println("memorycardcapacity: " + memorycardcapacity);
System.out.println("cameraresolution: " + cameraresolution);
System.out.println("GPS: " + GPS);
System.out.println("serviceprovider: " + serviceprovider);
System.out.println("typeofcontract: " + typeofcontract);
}
/**
* The mymobile class implements an application that
* simply displays "new Mobile!" to the standard output.
*/
public class mymobile {
public static void main(String[] args) {
System.out.println("new Mobile!"); //Display the string.
}
}
public static void buildPhones(){
Mobile Samsung = new Mobile("Samsung", 3, 4, 8, "verizon",
"GPS");
Mobile Blackberry = new Mobile("Blackberry", 3, 4,
8, "verizon", "GPS");
Samsung.displayMobileDetails();
Blackberry.displayMobileDetails();
}
public static void main(String[] args) {
buildPhones();
}
}
어떤 답변이나 답변 및 도움을 주시면 감사하겠습니다!
질문에 이미 답변되어 있지만 조언을 해드립니다. 이러한 상황을 방지하기 위해 4 개 이상의 인수가있는 메소드 (생성자)를 만들지 마십시오. 대신에 [패턴 빌더] (http://en.wikipedia.org/wiki/Builder_pattern)를 사용하거나 getters/setters를 사용하십시오. – ArtemStorozhuk