java 主方法 this_java main 方法怎么创建
學(xué)校作業(yè)。。publicstaticvoidmain(String[]args){不知道加在哪里packagepersonproject;publicclassPerson{publicstaticintlastId=0;privateStringname;privateStringgender;privateS...
學(xué)校作業(yè)。。
public static void main(String[] args) {
不知道加在哪里
package personproject;
public class Person {
public static int lastId = 0;
private String name;
private String gender;
private String address;
private int idNumber;
//constructor
public Person() {
}
//constructor
public Person(String name, String gender, String address) {
super();
this.name = name;
this.gender = gender;
this.address = address;
lastId++;
this.idNumber = lastId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String toString() {
return "Person [name=" + name + ", gender=" + gender
+ ", address=" + address + ", idNumber=" + idNumber + "]";
}
public static int numberOfPeople(){
return lastId;
}
}
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