Assignment 05.txt

Task 01

import java.util.Scanner;
public class Task01{
     public static void main(String [] args){
          Scanner scnr=new Scanner(System.in);
          int N=scnr.nextInt(),i=1,k=2;
          while(i<=N){
               int div=0;
               for(int j=1;j<=k;j++){
                    if(k%j==0){
                         div++;
                    }
               }
               if(div==2){
                    System.out.println(k);
                    i++;
               }
               k++;
          }
     }  
}



Task 02

import java.util.Scanner;
public class Task02{
     public static void main(String [] args){
          Scanner scnr=new Scanner(System.in);
          System.out.println("The value of N:");
          int N=scnr.nextInt();
          int sum2=0;
          for(int j=1;j<=N;j++){
               int sum=0;
               for(int i=1;i<=j;i++){
                    sum+=i;
               }
               sum2-=sum;
          }
          System.out.println("The value of y:"+sum2);
     }
}



Task 03

import java.util.Scanner;
public class Task03{
     public static void main(String [] args){
          Scanner scnr=new Scanner(System.in);
          while(true){
               System.out.print("Enter Number:");
               int n=scnr.nextInt();
               int div=0;
               for(int i=1;i<=n;i++){
                    if(n%i==0){
                         div++;
                    }
               }
               if(n%2!=0){
                    break;
               }
               System.out.println(n+" has "+div+" divisors.");
          }
     }
}



Task 04

import java.util.Scanner;
public class Task04{
     public static void main(String [] args){
          Scanner scnr=new Scanner(System.in);
          int noftc=scnr.nextInt();
          for(int i=1;i<=noftc;i++){
               int X=scnr.nextInt();
               int Y=scnr.nextInt();
               int sum=0;
               for(int j=1;j<=Y;j++){
                    if(X%2!=0){
                         sum+=X;
                    }
                    else{
                         sum+=(X+1);
                    }
                    X+=2;
               }
               System.out.println(sum);
          }
     }
}



Task 05

import java.util.Scanner;
public class Task05{
     public static void main(String [] args){
          Scanner scnr=new Scanner(System.in);
          int col=scnr.nextInt();
          int rows=scnr.nextInt();
          for(int j=1;j<=rows;j++){
               for(int i=1;i<=col;i++){
                    System.out.print(i+" ");
               }
               System.out.println();
          }
     }
}



Task 06

import java.util.Scanner;
public class Task06{
     public static void main(String [] args){
          Scanner scnr=new Scanner(System.in);
          int N=scnr.nextInt();
          for(int j=1;j<=N;j++){
               for (int sp=1;sp<=(N-j);sp++){
                    System.out.print("   ");
               }
               for(int i=1;i<=j;i++){
                    System.out.print(i+" ");
               }
               System.out.println();
          }
     }
}



Task 07

import java.util.Scanner;
public class Task07{
     public static void main(String [] args){
          Scanner scnr=new Scanner(System.in);
          System.out.println("Please enter the height of the isosceles triangle: ");
          int N=scnr.nextInt();
          for(int j=1;j<=N;j++){
               for (int sp=1;sp<=(N-j);sp++){
                    System.out.print("   ");
               }
               for(int i=1;i<=((2*j)-1);i++){
                    System.out.print(i+" ");
               }
               System.out.println();
          }
     }
}



Task 08

import java.util.Scanner;
public class Task08{
     public static void main(String [] args){
          Scanner scnr=new Scanner(System.in);
          System.out.println("Start: ");
          int s=scnr.nextInt();
          System.out.println("End: ");
          int e=scnr.nextInt();
          System.out.println("Armstrong numbers:");
          for(int j=s;j<=e;j++){
               int c=0,a=j;
               while(true){
                    a/=10;
                    c++;
                    if(a==0){break;}
               }
               int sum=0,b;
               double k;
               for (a=j;a!=0;a/=10){
                    b=a%10;
                    k=b;
                    sum+=Math.pow(k,c);
               }
               if(sum==j){
                    System.out.println(j);
               }
          }
     }
}