Chan pra1

import java.io.*; import java.util.*; import java.text.*; import java.math.*; import java.util.regex.*;  public class Solution {     public static void main(String args[] ) throws Exception {         Scanner sc = new Scanner(System.in);         int n = sc.nextInt();         Student[] s = new Student[n];           for(int i = 0; i < n; i++) {           int id = sc.nextInt();           sc.nextLine();           String name = sc.nextLine();           double marks = sc.nextDouble();         int age = sc.nextInt();          s[i] = new Student(id, name, marks, age);        }        double m = sc.nextDouble();        Student s1 = searchStudentByAge(s, m);        if(s1 == null) {            System.out.println("No Student found with mentioned age.");        } else {            System.out.println("id-"+s1.getId());            System.out.println("name-"+s1.getName());            System.out.println("marks-"+s1.getMarks());            System.out.println("age-"+s1.getAge());        }        Student s2 = findStudentWithMinimumMarks(s);        if(s2 == null) {            System.out.println("No Student found with mentioned age.");        } else {            System.out.println("id-"+s2.getId());            System.out.println("name-"+s2.getName());            System.out.println("marks-"+s2.getMarks());            System.out.println("age-"+s2.getAge());        }              }          public static Student searchStudentByAge(Student[] s,double marks){                 int l = s.length;                 for(int i = 0; i < l; i++) {                     if(marks == s[i].getAge()) return s[i];                 }                 return null;     }      public static Student findStudentWithMinimumMarks(Student[] s){                 double min = s[0].getMarks();                 Student s1 = null;                 for(int i = 0; i < s.length; i++) {                     if(s[i].getMarks() <= min) {                         min = s[i].getMarks();                         s1 = s[i];                     }                 }                 return s1;     } }     class Student {            int id;            String name;            double marks;            int age;            Student(int id, String name, double marks, int age) {                this.id = id;                this.name = name;                this.marks = marks;                this.age = age;            }            public int getId() {                return id;            }            public void  setId(int id) {                this.id = id;            }            public String getName() {                return name;            }            public void  setName(String Name) {                this.name = name;            }            public double getMarks() {                return marks;            }            public void  setMarks(double marks) {                this.marks = marks;            }            public int getAge() {                return age;            }            public void  setAge(int age) {                this.age = age;            }     }