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176 lines (153 loc) · 4.48 KB
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//Quiz1
class Quiz1{
public static void main(String[] args){
double y = 3;
double sum = 0;
for(int x = 1;x<=49;x++){
sum += (x/y);
y += 2;
}
//p'thery -> for(int x = 1;x<=49;sum += (x/y),x++,y += 2);
System.out.print(sum);
}
}
//Quiz2
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xxxooo
xxxoo
xxxo
//Quiz3
class Quiz3{
public static boolean equalArrays(int a1[], int a2[]){
if(a1.length != a2.length){
return false;
}
for(int i = 0;i<a1.length;i++){
if(a1[i] != a2[i])
return false;
}
return true;
}
//just a test (no need to write in exam)
public static void main(String[] args){
int a1[] = {1,2,3};
int a2[] = {1,2,3,4};
System.out.print(equalArrays(a1,a2));
} }
//Quiz4
class Delivery{
private String deliveryNumber;
private int code;
private double weight;
private double fee;
Delivery(int year, int no, int code, double weight){
this.weight = weight;
this.code = code;
String dNo = "";
if(no>=1 & no<=9)
dNo = "000"+no;
else if(no<=99)
dNo = "00"+no;
else if(no<=999)
dNo = "0"+no;
else if(no<=9999)
dNo = ""+no;
deliveryNumber = ""+year+dNo;
if(code == 1){
if(weight<5)
fee = 10.00;
else if(weight<=20)
fee = 25.50;
else if(weight>20)
fee = 40.00;
}
else if(code == 2){
if(weight<5)
fee = 50.00;
else if(weight>=5)
fee = 100.00;
}
} //end of Delivery Constructor ^^
//Getters Method ^^
public String getDeliveryNumber(){
return deliveryNumber;
}
public int getCode(){
return code;
}
public double getWeight(){
return weight;
}
public double getFee(){
return fee;
}
//Setters Method ^^
public void setCode(int code){
this.code = code;
}
public void setWeight(double weight){
this.weight = weight;
}
public void setFee(double fee){
this.fee = fee;
}
//toString Method ^^
public String toString(){
return "Delivery Number : "+getDeliveryNumber()+
"\nCode : "+getCode()+
"\nWeight : "+getWeight()+
"\nFee : "+getFee();
}
}
import java.util.Scanner;
class TestDelivery{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
int dNo = 0;
int year = 0;
double weight = 0;
int code = 0;
do{
System.out.print("Enter Delivery Number : ");
dNo = sc.nextInt();
}
while(dNo<1 | dNo>9999);
do{
System.out.print("Enter Year : ");
year = sc.nextInt();
}
while(year<2001 | year > 2050);
do{
System.out.print("Enter Weight : ");
weight = sc.nextDouble();
}
while(weight < 0.10 | weight > 100);
do{
System.out.print("Enter Distance Code : ");
code = sc.nextInt();
}
while(code != 1 & code !=2);
Delivery dl1 = new Delivery(year,dNo,code,weight);
System.out.println(dl1); //revoke toString Method ^^
//Revoke Setters Method ^^
dl1.setCode(2);
dl1.setWeight(12.50);
dl1.setFee(50.50);
//Revoke Getters Method ^^
System.out.println("getDeliveryNumber() : "+dl1.getDeliveryNumber());
System.out.println("getCode(): "+dl1.getCode());
System.out.println("getWeight() : "+dl1.getWeight());
System.out.println("getFee() : "+dl1.getFee());
} }
//Quiz5
จำไม่ได้ค่ะ - -"
รู้แต่ว่าข้อแรกอ่ะ ไม่มีค่า เพราะจองแีรมไว้เฉยๆ ยังไม่ได้ init - -"
และก็มีข้อหลังๆ ที่หลอก มี int ตัวแปรในลูป เพราะฉะนั้นทุกๆ ครั้งที่วน ค่ามันก็จะเริ่มใหม่
และก็ข้อบนๆ ตัวเลขที่ประกาศใน loop for ออกนอกลูป for แล้วจะหายไปนะ ^^