NPTEL » Programming In Java Assignment week 8 Sep-2020

NPTEL Java Assignment week 8

With the growth of Information and Communication Technology, there is a need to develop large and complex software. To meet this requirement object-oriented paradigm has been developed and based on this paradigm the Java programming language emerges as the best programming environment.

Programming In Java Assignment 8 Answers 2022

Programming in Java is a MOOC based course which is 12 weeks in duration and can fulfill the criteria of 4 credits in a year. You can visit the NPTEL SWAYAM platform and register yourself for the course. This course is brought to you by Prof. Dr. Debasis Samanta who holds a Ph.D. in Computer Science and Engineering from the Indian Institute of Technology Kharagpur.

Programming In Java 2020 Details:-

  1. Who Can Join: The undergraduate students from the engineering disciplines namely CSE, IT, EE, ECE, etc. might be interested in this course.
  2. Requirements/Prerequsites: The course requires that the students are familiar with a programming language such as C/C++ and data structures, algorithms.
  3. INDUSTRY SUPPORT:   All IT companies.

Java Assignment Week 8 Answers:-

Java Week 8: Q1.

Write a program which will print a pyramid of “*” ‘s of height “n” and print the number of “*” ‘s in the pyramid.


Answer/Code:-

import java.util.*;
public class Pattern1 {
public static void main(String[] args) {

    Scanner inr = new Scanner(System.in);

int n = inr.nextInt();

    // Add the necessary code in the below space

  int k=0, s=0;

  for(int i=1;i<=n;++i,k=0){

    for(int j =1;j<=n-i;++j){

      System.out.print("  ");

    }

    while(k !=2 *i-1){

      System.out.print("* ");

      s=s+1;

      ++k;
     }
      System.out.println();
     }
   System.out.println(s);
   }
}

Java Week 8: Q2

Write a program which will print a pascal  pyramid of  “*” ‘s of height “l” .

Answer/Code:-

import java.util.*;
public class Pattern2 {
public static void main(String[] args) {
    Scanner inr = new Scanner(System.in);
 int l = inr.nextInt();
    // Add the necessary code in the below space
  for(int i=0;i<l;i++)
  {
    for(int j=l-i; j>1; j--)
    {
      System.out.print(" ");
    }
    for(int j=0;j<=i;j++)
    {
      System.out.print("* ");
    }
    System.out.println();
  }
}
}

Java Week 8: Q3

Write a program which will print a pyramid of “numbers” ‘s of height “n” and print the sum of all number’s in the pyramid.

Answer/code:-

import java.util.*;
public class Pattern3 {
public static void main(String[] args) {
    Scanner inr = new Scanner(System.in);
int n = inr.nextInt();
    // Add the necessary code in the below space
  int i,j,k,c,t=1,s=0;
  c=n-1;
  for(i=1;i<=n;i++)
  {
    int start=1;
    for(j=1;j<=c;j++)
    {
      System.out.print("  ");
    }
    for(k=1;k<=t;k++)
    {
      System.out.print(start+" ");
      s=start+s;
      start++;
    }
    c--;
   t+=2;
   System.out.print("\n");
  }
  System.out.println(s);

}
}

NPTEL » Programming In Java Assignment week 6 Sep-2020

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Java Week 8: Q4

Write a program to print symmetric Pascal’s triangle of “*” ‘s of  height “l” of odd length . If input “l” is even then your program will print “Invalid line number”.

Answer/Code:-

import java.util.*;
public class Pattern4 {
public static void main(String[] args) {
    Scanner inr = new Scanner(System.in);
int l = inr.nextInt();
  // Add the necessary code in the below space
  int k;
  if(l%2==0)
    System.out.print("Invalid line number");
  else{
    for(int i=0;i<l;i++){
      k=0;
      if(i<=l/2){
        for(int j = l-i;j>l/2 + 1;j--){
          System.out.print(" ");
        }
        while(k<(i+1)){
          System.out.print("*" + " ");
          k++;
        }
      }
      else {
        for(int j =l-i; j< l/2 + 1; j++)
          System.out.print(" ");
        while(k < (l-i)){
          if(k== l-i-1)
            System.out.print("*");
          else{
            System.out.print("*");
            System.out.print(" ");
          }
          k++;
        }
      }
      if(i!= l-1)
        System.out.println();
   }
  }
}
}

Java Week 8: Q5 –

Write a program to display any digit(n) from 0-9 using “7 segment  display“.

Answer/Code:-

import java.util.*;

public class Pattern5 {

public static void main(String[] args) {

       Scanner inr = new Scanner(System.in);
   int n = inr.nextInt();
       // Add the necessary code in the below space    
 if(n==5){
   System.out.println(" _ ");
   System.out.println("|"+"_ ");
   System.out.println(" _"+"|");
 }
 if(n==4){
   System.out.println("   ");
   System.out.println("|_|");
   System.out.println("  |");
 }
 if(n==1){
   System.out.println("  |");
   System.out.println("  |");
 }
 if(n==6){
   System.out.println(" _ ");
   System.out.println("|_ ");
   System.out.print("|_|");
 }
 if(n==3){
   System.out.println(" _ ");
   System.out.println(" _|");
   System.out.print(" _|");
 }
 if(n==2){
   System.out.println(" _ ");
   System.out.println(" _|");
   System.out.print("|_");
 }
 if(n==0)
 {
   System.out.println(" _ ");
   System.out.println("| |");
   System.out.println("|_|");
 }
 if(n==7)
 {
   System.out.println(" _ ");
   System.out.println("  |");
   System.out.print("  |");
 }
 if(n==8)
 {
   System.out.println(" _ ");
   System.out.println("|_|");
   System.out.print("|_|");
 }
 if(n==9)
 {
  System.out.println(" _ ");
  System.out.println("|_|");
  System.out.print(" _|");
 }
}
}

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NOTE: These codes are based on our knowledge. Answers might be incorrect, we suggest you to not the copy-paste answers blindly.

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