Bajardi: Saidov S

Code:
package paradigm.amaliy5;

public class Chars {
public static void main(String[] args) {
char[] chars = {'a', 'b', 'c', 'A', 'B', 'e', 'O', 'P', 'o', 'Q'};
int letter1 = 0;
int letter2 = 0;

for (char aChar : chars) {
if (aChar <= 90) {
letter1++;
} else {
letter2++;
}
}
System.out.println("katta xarflar soni: " + letter1);
System.out.println("kichik xarflar soni: " + letter2);
}
}

Natija:

3. 
   Kredit tizimida darsga talabalar har xil guruxlardan kelganligi uchun
   bir birlarini yaxshi tanishmaydi. Shuning uchun o‘zining o‘rniga boshqa
   fanni yaxshi biladigan or‘tog‘ini kirtib yuboradi. Imtixonlar kompyuterda
   o‘tkaziladi. Savollarni ochish uchun FIO kiritilgandan keyin, talabaning
   barmog‘ izlari tekshiriladi. Agar mos kelsa savollar ochiladi. Aks holda
   ochilmaydi. Imtixonga o‘rtog‘ini uchun kirga begona talabalarni aniqlovchi
   dastur tuzing.
   

Code:
package paradigm.amaliy5;

public class Student {
private String name;
private String surname;
private int fingerId;

public Student(String name, String surname, int fingerId) {
this.name = name;
this.surname = surname;
this.fingerId = fingerId;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public String getSurname() {
return surname;
}

public void setSurname(String surname) {
this.surname = surname;
}

public int getFingerId() {
return fingerId;
}

public void setFingerId(String fingerId) {
this.fingerId = Integer.parseInt(fingerId);
}

@Override
public String toString() {
return "Student{" +
"name='" + name + '\'' +
", surname='" + surname + '\'' +
", fingerId='" + fingerId + '\'' +
'}';
}
}

package paradigm.amaliy5;

import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

public class FindStudent {
public static void main(String[] args) {
Map map = new HashMap<>();
map.put(123456789, new Student("Nurbek", "Sirojiddinov", 123456789));
Scanner scanner = new Scanner(System.in);
System.out.print("Ismni kiriting: ");
String name = scanner.next();
System.out.print("Familyani kiriting: ");
String surname = scanner.next();
int id = scanner.nextInt();
if (map.containsKey(id)) {
System.out.println("Generating questions.....");
System.out.println(map);
} else {
System.out.println("There is no such user!!!");
}
}
}

Natija:

3. 
   a[n][m] massiv elementlarini [-1000; 1000] oraliqdagi tasodifiy sonlar bilan
   to‘ldiring. Berilgan massiv elementlarining a va b oraliqdagilari sonini
   toping.
   

Code:

package paradigm.amaliy5;

import java.util.Arrays;
import java.util.Scanner;

public class RandomArray {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("massive dagi qatorlar sonini kiriting");