Program to Swap Numbers Using Temporary Variable

#include <stdio.h>
int main()
{
      double firstNumber, secondNumber, temporaryVariable;

      printf("Enter first number: ");
      scanf("%lf", &firstNumber);

      printf("Enter second number: ");
      scanf("%lf",&secondNumber);

      
      temporaryVariable = firstNumber;

      firstNumber = secondNumber;

      
      secondNumber = temporaryVariable;

      printf("\nAfter swapping, firstNumber = %.2lf\n", firstNumber);
      printf("After swapping, secondNumber = %.2lf", secondNumber);

      return 0;
}

TRANSPOSE MATRIX

#include<stdio.h>
void main()
 {
  int a[50][50];
  int r,c,i,j;
  printf("\n Enter the Limit of Row & Coloumn  :  ");
  scanf("%d%d",&r,&c);
  printf("\n Enter the Matrix Elements  :  \n");
  for(i=0;i<r;i++)
   {
    for(j=0;j<c;j++)
     {
      scanf("%d",&a[i][j]);
     }
   }
  printf("\n The Given Matrix......\n\n");
  for(i=0;i<r;i++)
   {
    for(j=0;j<c;j++)
     {
      printf("%d\t",a[i][j]);
     }
    printf("\n");
   }
  printf("\n The Transpose of the Matrix......\n\n");
  for(i=0;i<c;i++)
   {
    for(j=0;j<r;j++)
     {
      printf("%d\t",a[j][i]);
     }
    printf("\n");
   }
 }

SYMMETRIC MATRIX

#include<stdio.h>

void main()
 {
  int a[50][50];
  int r,c,i,j,flag=1;
  printf("\n Enter the Limit of Row & Coloumn  :  ");
  scanf("%d%d",&r,&c);
  printf("\n Enter the Matrix Elements  :  \n");
  for(i=0;i<r;i++)
   {
    for(j=0;j<c;j++)
     {
      scanf("%d",&a[i][j]);
     }
   }
  printf("\n The Given Matrix......\n\n");
  for(i=0;i<r;i++)
   {
    for(j=0;j<c;j++)
     {
      printf("%d\t",a[i][j]);
     }
    printf("\n");
   }

BINARY SEARCH

#include<stdio.h>
void main()
 {
  int a[100];
  int i,j,n,temp,s,top,bottom,mid;
  printf("\n Enter the Limit  :  ");
  scanf("%d",&n);
  printf("\n Enter the %d Elemets......\n",n);
  for(i=0;i<n;i++)
   scanf("%d",&a[i]);
  printf("\n Enter the Searching Element  :  ");
  scanf("%d",&s);
 for(i=0;i<n-1;i++)
  {
   for(j=i+1;j<n;j++)
    {
     if(a[i]>a[j])
      {
       temp=a[i];
       a[i]=a[j];
       a[j]=temp;
      }
    }
  }
 if(n%2==0)
 {
 top=n+1;
 bottom=0;
 }
 else
  {
    top=n;
    bottom=0;
 }

 do
  {
   mid=(bottom+top);
   if(s<a[mid])
    {
     top=mid-1;
    }
   else
    {
     bottom=mid+1;
    }
  }while((s!=a[mid])&&(top>=bottom));
 if(s==a[mid])
   printf("\n Se Searching element is found  \n");
 else
   printf("\n Searching Element is Not found  \n");
 }

TEMPERATURE CONVERSION

import java.awt.*;
import java.awt.event.*;
import jpb.*;

// Driver class
public class ConvertTemp {
  public static void main(String[] args) {
    Frame frame = 
      new ConvertTempFrame("Temperature Conversion");
    frame.setSize(150, 75);
    frame.setVisible(true);
  }
}

// Frame class
class ConvertTempFrame extends Frame {
  private TextField fahrenField = new TextField();
  private TextField celsiusField = new TextField();

  // Constructor
  public ConvertTempFrame(String title) {
    // Set title for frame and choose layout
    super(title);
    setLayout(new GridLayout(2, 2));

    // Add Fahrenheit label and text field to frame; attach
    // listener to text field
    add(new Label("Fahrenheit"));
    add(fahrenField);
    fahrenField.addActionListener(new FahrenheitListener());

    // Add Celsius label and text field to frame; attach
    // listener to text field
    add(new Label("Celsius"));
    add(celsiusField);
    celsiusField.addActionListener(new CelsiusListener());

    // Attach window listener
    addWindowListener(new WindowCloser());
  }

  // Listener for fahrenField
  class FahrenheitListener implements ActionListener {
    public void actionPerformed(ActionEvent evt) {
      String fahrenheitString = fahrenField.getText();
      double fahrenheit = Convert.toDouble(fahrenheitString);
      double celsius = (fahrenheit - 32.0) * 5.0 / 9.0;
      celsius = Math.rint(celsius * 100.0) / 100.0;
      celsiusField.setText(celsius + "");
    }
  }

  // Listener for celsiusField
  class CelsiusListener implements ActionListener {
    public void actionPerformed(ActionEvent evt) {
      String celsiusString = celsiusField.getText();
      double celsius = Convert.toDouble(celsiusString);
      double fahrenheit = celsius * 9.0 / 5.0 + 32.0;
      fahrenheit = Math.rint(fahrenheit * 100.0) / 100.0;
      fahrenField.setText(fahrenheit + "");
    }
  }

  // Listener for window
  class WindowCloser extends WindowAdapter {
    public void windowClosing(WindowEvent evt) {
      System.exit(0);
    }
  }
}

AVERAGE OF A SERIES

// Computes the average of a series of scores

import jpb.*;

public class AverageScores {
  public static void main(String[] args) {
    // Prompt user to enter number of scores
    SimpleIO.prompt("Enter number of scores: ");
    String userInput = SimpleIO.readLine().trim();
    int numberOfScores = Integer.parseInt(userInput);
    System.out.println();

    // Create array to hold scores
    int[] scores = new int[numberOfScores];

    // Prompt user to enter scores and store them in an array
    int i = 0;
    while (i < scores.length) {
      SimpleIO.prompt("Enter score #" + (i + 1) + ": ");
      userInput = SimpleIO.readLine().trim();
      scores[i] = Integer.parseInt(userInput);
      i++;
    }

    // Compute sum of scores
    int sum = 0;
    i = 0;
    while (i < scores.length) {
      sum += scores[i];
      i++;
    }

    // Display average score
    System.out.println("\nAverage score: " +
                       sum / scores.length);
  }
}

SEQUENTIAL SEARCH

#include<stdio.h>
void main()
 {
  int a[100];
  int i,n,num,flag=0;
  printf("\n Enter the Limit :  ");
  scanf("%d",&n);
  printf("\n Enter the %d Elements.......\n",n);
  for(i=0;i<n;i++)
   scanf("%d",&a[i]);
  printf("\nEnter the Number which you want to search :  ");
  scanf("%d",&num);
  for(i=0;i<n;i++)
   {
    if(a[i]==num)
     {
      flag=1;
      break;
     }
   }
  if(flag==0)
   printf("\n The searching Element %d is not found in the Array   \n",num);
  else
    printf("\nThe Searching Element is in %d th position   ",i+1);

 }