Introduction to Programming with Java - Solved Assignments

This document contains solved assignments for Introduction to Programming with Java. It includes solutions for questions related to topics like commission rate, rainfall, sales of departments, and searching for names in an array. The document is useful for students pursuing courses in computer science and related fields.

Running head: INTRODUCTION TO PROGRAMMING
Introduction to programming
Name of the Student
Name of the University
Authors note

1INTRODUCTION TO PROGRAMMING
Q1.
public class Question1 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
int sharenum = 1000;
//number of shares
double btstockprice = 32.87;
//buy price of stocks
double commrate = .02;
//commission rate
double sstockprice = 33.92;
double buyamnt = (sharenum * btstockprice);
double buycomm = ((sharenum * btstockprice) * commrate);
double salamnt = (sharenum * sstockprice);
double salcomm = ((sharenum * sstockprice) * commrate);

2INTRODUCTION TO PROGRAMMING
System.out.println(" Total amount paid by Joe for purchsing Stock \t $" +
buyamnt);
System.out.println(" Total amount paid by for Brockers Commision \t $" +
buycomm);
System.out.println(" Total amount acquired by Joe by selling the Stock \t $" +
salamnt);
System.out.println(" Total amount paid to broker after sales of stocks \t $" +
salcomm);
System.out.println(" Total profit amount after the sale of Stocks \t $" +
(salamnt - buyamnt));
}
}

3INTRODUCTION TO PROGRAMMING
Q2.
public class Q2 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
int numyears;
int months = 12;
double[] rainfall = new double[12];

4INTRODUCTION TO PROGRAMMING
double sum = 0;
double average = 0;
Scanner sc = new Scanner(System.in);
System.out.println("Enter the Number of years");
numyears = sc.nextInt();
for (int o = 1; o <= numyears; o++) {
for (int y = 0; y < months; y++) {
//double sum = 0;
System.out.println(" Enter the rainfall for month " + (y + 1));
rainfall[y] = sc.nextDouble(); //taking input from the user
sum = sum + rainfall[y];
//Calculating the sum
System.out.println(sum);
average = sum / months;
//Calculating the average
}

5INTRODUCTION TO PROGRAMMING
System.out.println("Average for the year " + numyears + " and average
rainfall is " + average);
sum = 0;
}
}
}

6INTRODUCTION TO PROGRAMMING
Q3
*/
public class Q3 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
//double[][] salesarr = new double[6][4];
double sum1 = 0;

7INTRODUCTION TO PROGRAMMING
Scanner sc = new Scanner(System.in);
//System.out.print("Enter 2D array size for storing the Sales of the departments :
");
System.out.println("Enter the value of Number of Departments");
// Scanner sc=new Scanner(System.in);
int rows = sc.nextInt();
System.out.println("Enter the value of Number of Quarters");
int columns = sc.nextInt();
System.out.println("Enter the sales of the departments : ");
int twoD[][] = new int[rows][columns];
for (int i = 0; i < rows; i++) {
for (int j = 0; j < columns; j++) {
System.out.println("Enter the Sales for Department " + (i + 1) + " and for
qurater " + (j + 1));
twoD[i][j] = sc.nextInt();
//sum1 = sum1 + twoD[i][j];

8INTRODUCTION TO PROGRAMMING
}
//System.out.println("");
//System.out.println("Total sales for department " + (i + 1) + " is" + sum1);
}
for (int i = 0; i < rows; i++) {
for (int j = 0; j < columns; j++) {
System.out.println("Sales of the departments " + (i + 1) + " and for qurater "
+ (j + 1) + " is " + twoD[i][j]);
//twoD[i][j] = sc.nextInt();
sum1 = sum1 + twoD[i][j];
}
//System.out.println("");
System.out.println("Total sales for department " + (i + 1) + " is" + sum1);
}
System.out.println("The Average sales of quarter is " + (sum1 / rows));
//f//or (int k = 1; k <= 6; k++) {

9INTRODUCTION TO PROGRAMMING
// for (int l = 1; l <= 4; l++) {
//System.out.println(" The sales for division " + k + "is " + salesarr[k][l]);
//}
// }
}
}
Q4.
public class Q4 {

10INTRODUCTION TO PROGRAMMING
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
String[] firstName = {"Jhon", "Caly", "Justin", "Judith", "Daniel", "Trisha",
"Daniel"};
String[] phonenum = {"225-5241", "258-147", "963-852", "862-741", "987-
456", "745-965", "325-147", "865-245", "987-124", "258-964"};
System.out.println("Enter the initials you want to look for");
Scanner sc = new Scanner(System.in);
String inp = sc.next();
for (int i = 0; i < 10; i++) {
if (firstName[i].contains(inp))
//comparing the user input with all the available array elements
{
Checking the name array if the
System.out.print(firstName[i]);

11INTRODUCTION TO PROGRAMMING
System.out.print("\t");
System.out.println(phonenum[i]);
}
}
}
}