Import java util. Scanner; class HelloWorld {

1)
import java.util.Scanner;
class HelloWorld {
public static void main(String[] args) {
Scanner kiritish = new Scanner(System.in);
double a;
System.out.print("Sonni kiriting -> ");
a = kiritish.nextInt();
if (a > 0){
a++;
System.out.println(" Kiritilgan son musbat va " + a +" ga ega bo'ldi");
}
else {
System.out.println("Kiritilgan son manfiy va u " + a + " ligicha qoladi");
} } }
Bu musbat natija

Bu manfiy natija


import java.util.Scanner;
class HelloWorld {
public static void main(String[] args) {
Scanner kiritish = new Scanner(System.in);
double X;
double Y;
System.out.print("Sonni kiriting -> ");
X = kiritish.nextInt();
if (X <= 0){
Y = -X;
System.out.println(" Natija - " + Y);
}
else if (X > 0 && X<2) {
Y = Math.pow(X,2);
System.out.println(" Natija - " + Y);
}
else {
Y = 4 ;
System.out.println(" Natija - " + Y);
} } }