I Am Neo Java week 8

For skill builder hand 👇👇

https://notesofeng.blogspot.com/2023/01/i-am-neo-java-week8-skill-builder.html

How to copy and paste in I am Neo 👇👇

If error comes try to submit twice or thrice...

Challange Yourself

1. Vishal is working in the credit card section in a bank.

import java.util.Scanner; 
 class CreditCard { 
 public static void main(String[] args) 
 { 
 Scanner myObj =new Scanner(System.in);
 long number = myObj.nextLong(); 
 
 System.out.println(number + " is " + 
 (isValid(number) ? "valid" : "invalid")); 
 } 
 
 
 public static boolean isValid(long number) 
 { 
 return (getSize(number) >= 13 && 
 getSize(number) <= 16) && 
 (prefixMatched(number, 4) || 
 prefixMatched(number, 5) || 
 prefixMatched(number, 37) || 
 prefixMatched(number, 6)) && 
 ((sumOfDoubleEvenPlace(number) + 
 sumOfOddPlace(number)) % 10 == 0); 
 } 
 
 // 
 public static int sumOfDoubleEvenPlace(long number) 
 { 
 int sum = 0; 
 String num = number + ""; 
 for (int i = getSize(number) - 2; i >= 0; i -= 2) 
 sum += getDigit(Integer.parseInt(num.charAt(i) + "") * 2); 
 
 return sum; 
 } 
 public static int getDigit(int number) 
 { 
 if (number < 9) 
 return number; 
 return number / 10 + number % 10; 
 } 
 
 
 public static int sumOfOddPlace(long number) 
 { 
 int sum = 0; 
 String num = number + ""; 
 for (int i = getSize(number) - 1; i >= 0; i -= 2) 
 sum += Integer.parseInt(num.charAt(i) + ""); 
 return sum; 
 } 
 
 
 public static boolean prefixMatched(long number, int d) 
 { 
 return getPrefix(number, getSize(d)) == d; 
 } 
 
 public static int getSize(long d) 
 { 
 String num = d + ""; 
 return num.length(); 
 } 
 
 public static long getPrefix(long number, int k) 
 { 
 if (getSize(number) > k) { 
 String num = number + ""; 
 return Long.parseLong(num.substring(0, k)); 
 } 
 return number; 
 } 
}

2. Types of Constructors

3. Array of ItemType objects

import java.io.*;
import java.util.*;
class ItemType {
String s = "public void search(String search, ItemType[] itemTypeArray)"; 
String s1 = "public void display(ItemType[] itemTypeArray)";
String name;
double deposit;
double costPerDay;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public double getDeposit() {
return deposit;
}
public void setDeposit(double deposit) {
this.deposit = deposit;
}
public double getCostPerDay() {
return costPerDay;
}
public void setCostPerDay(double costPerDay) {
this.costPerDay = costPerDay;
}
public ItemType() {
this.name=null;
this.deposit=0;
this.costPerDay=0;
}
public ItemType(String name, double deposit, double costPerDay) {
this.name = name;
this.deposit = deposit;
this.costPerDay = costPerDay;
}
}
class ItemTypeBO {
public void searchDetail(String search, ItemType[] item,int n) {
int i,flag=0;
for(i=0;i<n;i++) {
if(item[i].name.equalsIgnoreCase(search)) {
System.out.println(item[i].name+" "+item[i].deposit+" "+item[i].costPerDay);
flag = 1;
}
}
if(flag == 0) {
 System.out.println("Searched item Type not found");
}
}
public void display(ItemType[] item , int n) {
int i;
for(i=0;i<n;i++) {
System.out.println(item[i].name+" "+item[i].deposit+" "+item[i].costPerDay);
}
}
}
class Main {
public static void main(String [] args) {
int i,n;
Scanner sc = new Scanner(System.in);
n = sc.nextInt();
ItemType i1[] = new ItemType[n];
ItemTypeBO ibo = new ItemTypeBO();
for(i=0;i<n;i++) {
i1[i] = new ItemType();
i1[i].setName(sc.next());
i1[i].setDeposit(sc.nextDouble());
i1[i].setCostPerDay(sc.nextDouble());
}
String search = sc.next();
ibo.searchDetail(search, i1,n);
ibo.display(i1, n);
}
}

4. A Multiplication Game

5. Overriding toString()

import java.io.*;
import java.util.*;
class Address {
public String addressLine1;
public String addressLine2;
public String city;
public String state;
public int pincode;
public String getAddressline1() {
return addressLine1;
}
public void setAddressline1(String addressline1) {
this.addressLine1 = addressline1;
}
public String getAddressLine2() {
return addressLine2;
}
public void setAddressLine2(String addressLine2) {
this.addressLine2 = addressLine2;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
public int getPincode() {
return pincode;
}
public void setPincode(int pincode) {
this.pincode = pincode;
}
public Address(String addressLine1, String addressLine2, String city,String state, Integer pincode) {
this.addressLine1 = addressLine1;
this.addressLine2 = addressLine2;
this.city = city;
this.state = state;
this.pincode = pincode;
}
public Address() {
this.addressLine1 = null;
this.addressLine2 = null;
this.city = null;
this.state = null;
this.pincode = 0;
}
public String toString() {
return addressLine1+"\n"+addressLine2+"\n"+city+"\n"+state+"\n"+pincode;
}
}
class Main {
public static void main(String [] args) {
Address a = new Address();
Scanner sc = new Scanner(System.in);
a.addressLine1 = sc.nextLine();
a.addressLine2 = sc.nextLine();
a.city = sc.next();
a.state = sc.next();
a.pincode = sc.nextInt();
Address a1 = new Address(a.addressLine1, a.addressLine2, a.city, a.state, a.pincode);
System.out.println(a1);
}
}

I Am Neo Java week 8

How to copy and paste in I am Neo 👇👇

If error comes try to submit twice or thrice...

Challange Yourself

1. Vishal is working in the credit card section in a bank.

2. Types of Constructors

3. Array of ItemType objects

4. A Multiplication Game

5. Overriding toString()

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I Am Neo Java week 8

How to copy and paste in I am Neo 👇👇

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If error comes try to submit twice or thrice...

Challange Yourself

1. Vishal is working in the credit card section in a bank.

2. Types of Constructors

3. Array of ItemType objects

4. A Multiplication Game

5. Overriding toString()

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