uk10

import java.util.Scanner;
@FunctionalInterface
interface Cube {
int cube(int x);
}
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Enter a number: ");
int num = sc.nextInt();
// Copy code
Cube cube = x -> x * x * x;
System.out.println("The cube of " + num + " is " + cube.cube(num));
sc.close();
}
}
Q2)
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
class StudentInfo {
int rollno;
String name;
String className;
float percentage;
StudentInfo(int rollno, String name, String className, float percentage) {
this.rollno = rollno;
this.name = name;
this.className = className;
this.percentage = percentage;
}
void display() {
System.out.println("ROLL NO.: " + rollno);
System.out.println("NAME: " + name);
System.out.println("CLASS: " + className);
System.out.println("PERCENTAGE: " + percentage);
}
}
class StudentPer {
static float findPercentage(int[] marks) {
float total = 0;
for (int mark : marks) {
total += mark;
}
return total / marks.length;
}
}
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Enter roll number: ");
int rollno = Integer.parseInt(br.readLine());
System.out.print("Enter name: ");
String name = br.readLine();
System.out.print("Enter class: ");
String className = br.readLine();
int[] marks = new int[6];
for (int i = 0; i < 6; i++) {
System.out.print("Enter marks for subject " + (i+1) + ": ");
marks[i] = Integer.parseInt(br.readLine());
}
float percentage = StudentPer.findPercentage(marks);
StudentInfo student = new StudentInfo(rollno, name, className, percentage);
student.display();
}