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Browse CoursesRemove duplicates: {1,2,2,3,4,4,5} output: 1 2 3 4 5 Program class Removeduplicates { public static void main(String args[]) { int arr[]={1,2,2,3,4,4,4,5}; int temp[]=new int[5];//0-4 int j=0; for(int i=0; i<arr.length-1; i++)0<7 { if(arr[i]!=arr[i+1])1 not equals 2 { temp[j++]=arr[i];temp[0]=1 2 } } temp[j++]=arr[arr.length-1]; for(int i=0;i<j;i++) { System.out.println(temp[i]+” “); } }}
class stringconcept { public static void main(String args[]) { String a=”Tutor”; String b=”Tutor”; System.out.println(“A=” +a); System.out.println(“B=” +b); System.out.println(“A Hashcode=” +a.hashCode());// a and b shares the same address System.out.println(“B Hashcode=” +b.hashCode()); } } //List of strings predefined methods: class stringconcept { public static void main(String args[]) { String a=”Tutor”; String b=”Tutor”; […]
Left shift the elements in an array int arr[]={10, 20, 30, 40, 50} 0 1 2 3 4 output: 20 30 40 50 10 ———————————————— Find a given number is odd or even without modulus or divide ——————————————————- Move all the leading zeros to the tail end of an array […]
linear search==>checking each element one by one in an array until we finding the target value arr[]={1,2,3,…….100}; target value=3 class Linear { public static void main(String args[]) { int arr[]={1,2,3,4,5,6,7,8,9,10}; int key=11; boolean yes=false; for(int i=0;i<=10;i++) { if(arr[i]==key) { System.out.println(“element found at=”+(i+1)); yes=true; break; } } if(!true) System.out.println(“element […]
Here’s a simple Java program to find the maximum and minimum elements in an array public class MinMaxInArray { public static void main(String[] args) { int[] arr = {12, 5, 7, 20, 3, 15}; int max = arr[0]; int min = arr[0]; for (int num : arr) { if (num > max) max […]
Here’s a short and simple Java program to find the second largest element in an array in just a few lines public class SecondLargest { public static void main(String[] args) { int[] arr = {10, 5, 20, 8, 15}; int max = Integer.MIN_VALUE, secondMax = Integer.MIN_VALUE; for (int num : arr) { if […]
Here is a simple Java program to perform Linear Search on an array: ✅ Linear Search Example in import java.util.Scanner; public class LinearSearch { public static void main(String[] args) { Scanner sc = new Scanner(System.in); // Input array size System.out.print(“Enter the number of elements: “); int n = sc.nextInt(); int[] arr […]
Java program class Hospital { String name; Hospital(String name) { this.name=name;//name:Apollo hospital } } //————————- class Doctor { String doctorname;//attributes Doctor(String doctorname)//constructor { this.doctorname=doctorname;//doctorname=Dr.kelwin } void worksIn(Hospital a)//a=apollo { System.out.println(doctorname+” working in “+a.name); } } class Association { public static void main(String args[]) { Hospital apollo=new Hospital(“Apollo hospital”); Doctor d1=new Doctor(“Dr.kelwin”); d1.worksIn(apollo); } […]
Inheritance—>(Is-A relationship) Every properties and behaviour of parent class can be accessed by derived class class A//base class { —– —– } class B extends A//derived class { —— —— } ——————- class Vehicle { ——– ——– } class Car extends Vehicle { ——— ——— } Car IS-A Vehicle drawback: In Inheritance,tight coupling(strong […]
Method overriding: A method in base class redefining in derived class class user { String name; int age; user(String n,int a) { this.name=n; this.age=a; } public void display() { System.out.println(“Name=” +name); System.out.println(“Age=” +age); } } class Mainprogrammer extends User { String companyname; Mainprogrammer(String n,int a,String c) { super(n,a); this.companyname=c; } public void display() […]
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