nigga

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package Java_core;

import java.io.*;

/**
 *
 * @author Tri
 */
public class Array {
    static BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    public static void main(String[] args) throws IOException {
        int a[]= new int[100];

        System.out.print("Enter n: ");
        int n = Integer.parseInt(in.readLine());

        inputArray(a, n);
        showArray(a, n);
        showEven(a, n);
        showMain(a, n);
        prmSum(a, n);
        max(a, n);

        sort(a, n);
        minmod30(a, n);

        showArray(a, n);
        show3(a, n);



        //Nhap mang so nguyen n phan tu
        //Hien cac phan tu chan
        //Co bao nhieu phan tu chinh phuong
        //Tinh tong cac phan tu la so nguyen to
        //Tim gia tri lon nhat trong mang
        //Tim gia tri nho nhat chia het cho 3
        //Sap xep mang tang dan
        //Sap xep mang giam dan cac phan tu tan cung la 3

    }
//FUNCTIONS
    static void inputArray(int a[], int n) throws IOException
        {
            System.out.println("Input the array a["+n+"]");
            for(int i=0; i<n; i++)
            {
                System.out.print("a["+ i +"]=");
                a[i]= Integer.parseInt(in.readLine());
            }
            System.out.println("");
        }

    static void showArray(int a[], int n)
    {
        System.out.print("The full array: ");
        for(int i=0; i < n; i++)
        {
            System.out.print(+a[i]+" ");
        }
        System.out.println("");
    }

    static void showEven(int a[], int n)
    {
        System.out.print("Even value(s) in the array: ");
        for(int i=0; i<n; i++)
        {
            if(a[i]%2==0) System.out.print(+a[i]+" ");
        }
        System.out.println("");
    }

    static void showMain(int a[], int n)
    {
        int cnt=0;
    //    System.out.print("Main number(s) in the array: ");
        for(int i=0; i<n; i++)
        {
            if(a[i]%Math.sqrt(a[i])==0) cnt++;
        }
        System.out.println("There are "+cnt+" main number(s) in the array");
    }

    static boolean isPrm(int n)
    {
        boolean prm=true;
        if(n<2)return false;
        else
        {
            for(int i=2; i<n; i++)
            {
                if(n%i==0) return false;
            }
        return true;
        }
    }

    static void prmSum(int a[], int n)
    {
        System.out.print("The sum off all prime numbers: ");
        int sum = 0;
        for(int i=0; i<n; i++)
        {
            if(isPrm(a[i])==true) sum+=a[i];
        }
        System.out.println(+sum);
    }

    static void max(int a[], int n)
    {
        System.out.print("The greatest value in the array: ");
        int max=a[0];
        for(int i=0; i<n; i++)
        {
            if(a[i+1]>a[i]) max=a[i+1];
        }
        System.out.println(+max);
    }

    static void minmod30(int a[], int n)
    {
        System.out.print("The smallest value that mod 3 equal to 0: ");
        for(int i=0; i<n; i++)
        {
            if(a[i]%3==0)
            {
                System.out.println(+a[i]);
                break;
            }
        }
        System.out.println("");
    }

    static void sort(int a[], int n)
    {
        for(int i=0; i<n; i++)
        {
            for(int j=i+1; j<n; j++)
            {
                if(a[i] > a[j])
                {
                    int temp = a[i];
                    a[i] = a[j];
                    a[j] = temp;
                }
            }
        }
    }

    static void show3(int a[], int n)
    {
        System.out.print("The integers end with 3 in the array sorted descendingly: ");
        for(int i=n-1; i>=0; i--)
        {

        }
        System.out.println("");
    }
}