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Chapter_4_PS.java
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Chapter_4_PS.java
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//* Practice Set of Chapter-4 of Java
import java.util.*;
public class Chapter_4_PS {
public static void main(String[] args) {
// ? Create object of the Scanner class
Scanner sc = new Scanner(System.in);
// ! Problem:1 What will be the output of this program:
int a = 10;
if (a == 11) {
System.out.println("I am 11");
} else {
System.out.println("I an not 11");
}
// * Output: I am not 11
// ! Problem:2 Write a program to find out whether a student is pass or fail; if
// ! it requires a total of 40% and at least 33% in each subject to pass. Assume
// 3
// ! subjects and take marks as input from the user.
// ? Get marks from the users of three subjects
System.out.print("Enter The Subject 1 Marks : ");
int sub1 = sc.nextInt();
System.out.print("Enter The Subject 2 Marks : ");
int sub2 = sc.nextInt();
System.out.print("Enter The Subject 3 Marks : ");
int sub3 = sc.nextInt();
// ? Calculate average marks of the three subject
float average = (sub1 + sub2 + sub3) / 3;
System.out.printf("You got average marks in all subject is : %.2f\n",
average);
// ? Check overall marks if grater 40 or not
if (average >= 40 && sub1 >= 33 && sub2 >= 33 && sub3 >= 33) {
System.out.println("Congratulations! You are passed");
} else {
System.out.println("Try again next, you are Fail?");
}
// ! Problem:3 Question 3 :Calculate income tax paid by an employee to the
// ! government as per the slabs mentioned below:
// ! Income Slab Tax
// ! 2.5L – 5.0L 5%
// ! 5.0L – 10.0L 20%
// ! Above 10.0L 30%
// ! Note that there is not tax below 2.5L. Take the input amount as input from
// ! the user.
// ? Get the income from the user
System.out.print("Enter your income here in lakhs : ");
int income = sc.nextInt();
// ? Check the income accordingly to the slab
if (income < 250000) {
System.out.println("You want to paid 0% income tax!");
} else if (income >= 250000 && income <= 500000) {
System.out.println("You want to pay 5% income tax!");
} else if (income >= 500000 && income <= 100000) {
System.out.println("You want to pay 20% income tax!");
} else {
System.out.println("You want to pay 30% income tax!");
}
// ! Problem:4 Write a Java program to find out the day of the week given the
// ! number [1 for Monday, 2 for Tuesday … and so on!]
// do {
// // ? Get the week day from the user
// System.out.print("Enter the week day here : ");
// int weekDay = sc.nextInt();
// // ? Check the week day accordingly
// if (weekDay == 1) {
// System.out.println("Sunday!");
// } else if (weekDay == 2) {
// System.out.println("Monday!");
// } else if (weekDay == 3) {
// System.out.println("Tuesday!");
// } else if (weekDay == 4) {
// System.out.println("Wednesday!");
// } else if (weekDay == 5) {
// System.out.println("Thursday!");
// } else if (weekDay == 6) {
// System.out.println("Friday!");
// } else if (weekDay == 7) {
// System.out.println("Saturday!");
// } else {
// System.out.println("Enter valid week day?");
// }
// } while (true);
// ! Problem:5 Write a Java program to find whether a year entered by the user
// ! is a leap year or not.
// ? Get the year from the user
System.out.println("Enter the year here : ");
int year = sc.nextInt();
// ? Check if the year is leap or not
if (year % 400 == 0 || (year % 100 != 0 && year % 4 == 0)) {
System.out.printf("%d is leap year!", year);
} else {
System.out.printf("%d is not a leap year!", year);
}
// ! Problem:6 Write a program to find out the type of website from the URL:
// ! .com – commercial website
// ! .org – organization website
// ! .in – Indian website
// ? Get the Website from the url
System.out.print("Enter the website URL : ");
String url = sc.nextLine();
// ? Check the url is Indian website or Commercial website or Organizational
// website
if (url.endsWith(".com")) {
System.out.println("This is commercial website!");
} else if (url.endsWith(".org")) {
System.out.println("This is organizational website!");
} else {
System.out.println("This is Indian website!");
}
sc.close();
}
}