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Browse CoursesCreate a student class with name, roll number. Use a constructor to initialize and display the student details class Student { String name; int rollNo; Student(String name,int rollNo) { this.name=name; this.rollNo=rollNo; } void display() { System.out.println(name); System.out.println(rollNo); } } class Main { public static void main(String args[]) { Student s1=new Student(“John”,101); […]
Question 2 : Reverse Prefix of Word(Using Stack) Given a 0-indexed string word and a character ch, reverse the segment of word that starts at index 0 and ends at the index of the first occurrence of ch (inclusive). If the character ch does not exist in word, do nothing. For […]
import java.util.*; class ASC { public static void main(String args[]) { HashSet<String> h=new HashSet<String>(); h.add(“Ram”); h.add(“Abi”); h.add(“Priya”); h.add(“John”); h.add(“Abi”); System.out.println(h); } }
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); }}
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 […]
To print a line of text in Java, you can use the System.out.println() statement. ✅ Example: java CopyEdit public class HelloWorld { public static void main(String[] args) { System.out.println(“Hello, this is a printed line in Java!”); } } 🔍 Explanation: System: A built-in class in Java. out: A static member of System, representing the output […]
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