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Browse CoursesGrocery store discount system scenario A Grocery store provides discount based on the total bill amount Above Rs.1000: 20% discount Rs.500 to Rs.1000: 10% discount Below Rs.500: No discount Write a java program that calculates the final bill amount after applying the discount import java.util.*; class ASC { public […]
A company has installed a smart elevator system in its office building. The elevator operates based on the following rule. The elevator can move between 1st to 10th floor Users can enter their desired floor,but if the floor is outside the range,the system should print “Invalid floor” The elevator starts from 1st floor and moves […]
Find the common elements in 2 list(arraylist) import java.util.*; class ASC { public static void main(String args[]) { ArrayList<Integer> a=new ArrayList<>(); a.add(1); a.add(2); a.add(3);// 1 2 3 ArrayList<Integer> b=new ArrayList<>(); b.add(4); b.add(2); b.add(5);//4 2 5 a.retainAll(b);//retainall will keep only the common values System.out.println(a);}}
class ASC { public static void main(String args[]) { ArrayList<Integer> find=new ArrayList<Integer>();1 8 9 2 6 6 Scanner s=new Scanner(System.in); for(int i=0;i<5;i++) { int temp=s.nextInt();//temp=8 if(!find.contains(temp))//true find.add(temp);//[1 8 9 2 6] } Collections.sort(find);[1 2 6 8 9] System.out.println(find); }}
Question: Create an Arraylist by adding elements Apple,banana,mango First element:Apple Second element:banana Third element:mango sort the list reverse the list ——————————- import java.util.*; class ASC { public static void main(String args[]) { ArrayList<String> fruits=new ArrayList<String>(); fruits.add(“Apple”); fruits.add(“Banana”); fruits.add(“Mango”); System.out.println(“First element:”+fruits.get(0)); System.out.println(“second element:”+fruits.get(1)); System.out.println(“Third element:”+fruits.get(2)); Collections.sort(fruits); System.out.println(“Sorted list:”+fruits); Collections.reverse(fruits); […]
Arrays in java import java.util.*; class ASC { public static void main(String args[]) { ArrayList<String> slist=new ArrayList<String>(); slist.add(“honey”);//0 slist.add(“joes”);//1 System.out.println(slist.indexOf(“joes”)); ArrayList<String> slist2=new ArrayList<String>(); slist2.addAll(slist); System.out.println(slist); System.out.println(slist2); }}
Collection framework: A Java collection framework provides an architecture to store and manipulate a group of elements or objects –>It “Provides an architecture” – means it gives a well-structured set of classes and interfaces. –>”To store, retrieve, and manipulate” – covers the basic operations like adding, removing, searching, sorting, etc. –>”Group […]
Here’s a simple Java program that takes a sentence as input and prints the number of letters in each word: ✅ Java Program: Count Letters in Each Word import java.util.Scanner; public class WordLengthCounter { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); // Input sentence System.out.print(“Enter a […]
The function accepts two positive integers ‘r’ and ‘unit’ and a positive integer array ‘arr’ of size ‘n’ as its argument,’r’ represents the number of rats present in an area,’unit’ is the amount of food each rat consumes and each ith elements of an array ‘arr’ represents the amount of food present in ‘i+1’ house […]
)Open/Closed Principle(OCP) Software entities should be open for extension but closed for modification. This allows adding new function without altering existing code. class AreaCalculator { public double calculateArea(String shape,double radius,double length,double breadth) { if(shape.equals(“circle”)) { return Math.PI*radius*radius; } else if(shape.equals(“rectangle”)) { return length*breadth; } } class OCPviolation { public static void main(String args[]) […]
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