ProgrammingKnowledge: December 2014

Wednesday, December 31, 2014

Java Tutorial For Beginners 24 - The final keyword in Java

package lesson1;
/*
Final keyword has a numerous way to use:

A final class cannot be subclassed.
A final method cannot be overridden by subclasses
A final variable can only be initialized once
*/
public class Hello {
   public final int number ;
   
   Hello () {
    number = 10;
   }
   
}

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Java Tutorial For Beginners 23 - Public, Private, Protected and this (Ja...

package lesson1;
/*Access Levels
Modifier Class Package Subclass World
public          Y      Y  Y           Y
protected   Y     Y         Y               N
no modifier   Y      Y   N           N
private           Y  N   N           N
*/
public class Student {
 private String name;
 private int age;
 
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public int getAge() {
  return age;
 }
 public void setAge(int age) {
  this.age = age;
 }

}



public class MyClass {

 public static void main(String[] args) {
  Student stu = new Student();
  stu.setName("mark");
  System.out.println(stu.getName());
 }
    
}

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Tuesday, December 30, 2014

Java Tutorial For Beginners 20 - Method Overloading in Java

package lesson1;
public class MyClass {

 public static void main(String[] args) {
       System.out.println(Add(1,36));
       System.out.println(Add(5.656,40.66));
       System.out.println(Add("hello"," world"));
 }
    
 public static int Add (int a ,int b){
  return (a+b);
 }
 
 public static double Add (double a ,double b){
  return (a+b);
 }
 
 public static String Add (String a ,String b){
  return (a+b);
 }
}

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Java Tutorial For Beginners 18 - Classes and Objects in Java

package lesson1;

public class Student {
 int id;
 String name;
 int age;

 public int getId() {
  return id;
 }
 public void setId(int id) {
  this.id = id;
 }
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public int getAge() {
  return age;
 }
 public void setAge(int age) {
  this.age = age;
 }
}

public class MyClass {

 public static void main(String[] args) {
  Student mark = new Student();//mark -> object or instance
  
  mark.setId(1);
  mark.setName("Mark");
  mark.setAge(15);
  
  Student tom = new Student();//Tom -> object or instance
  
  tom.setId(1);
  tom.setName("Tom"); 
  tom.setAge(14);
  
  System.out.println(mark.getName() + " is "+ mark.getAge() + " years old");
  System.out.println(tom.getName() + " is "+ tom.getAge() + " years old");
 }

}

Java Tutorial For Beginners 17 - Parameter passing and Returning a Value...

package lesson1;
public class MyClass {

 public static void main(String[] args) {
  
  int sum = Add(100,201,211);
  int result =sum * 15;
  System.out.println(result);
 }
 
 public static void sayHello(String name) {
  System.out.println("Hello " + name);
 }
 
 public static int Add (int a,int b,int c)
 {
  //System.out.println(a+ b +c);
  return (a +b+c);
 }

}

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Monday, December 29, 2014

Java Tutorial For Beginners 15 - Java String

package lesson1;
public class MyClass {

 public static void main(String[] args) {
      String myString = "Hello e World e";
      int myStringLegth = myString.length();
      String myStringinCase = myString.toUpperCase();
      
      System.out.println(myString.indexOf('o'));
 }

}

Java Tutorial For Beginners 14 - The for Statement in Java (for loops)

package lesson1;
public class MyClass {

 public static void main(String[] args) {
  int[] myintarray = {100,31,26,48,52};
  
  for (int index=0 ; index < 5 ; index++)
  {
   System.out.println(myintarray[index]);
  }
  
  for (int element : myintarray)
  {
   System.out.println(element);
  }
 }

}

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Java Tutorial For Beginners 13 - Arrays in Java

package lesson1;
public class MyClass {

 public static void main(String[] args) {
  int[] myintarray = {100,31,26,48,52};
  /*
  int[] myIntArray = new int[3];
  int[] myIntArray = {1,2,3};
  int[] myIntArray = new int[]{1,2,3};
  */
  int index=0;
  while(index < 5) {
  System.out.println(myintarray[index]);
  index++;
  }
 }

}

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Java Tutorial For Beginners 13 - Arrays in Java

package lesson1;
public class MyClass {

 public static void main(String[] args) {
  int[] myintarray = {100,31,26,48,52};
  /*
  int[] myIntArray = new int[3];
  int[] myIntArray = {1,2,3};
  int[] myIntArray = new int[]{1,2,3};
  */
  int index=0;
  while(index < 5) {
  System.out.println(myintarray[index]);
  index++;
  }
 }

}

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Java Tutorial For Beginners 12 - The do-while Statements (do-while Loops)

package lesson1;
public class MyClass {

 public static void main(String[] args) {
  int a = 0;

  while (a <= -1)
  {
   System.out.println(a); 
   a++;
  }

  System.out.println("------------------------------");
  int b = 0;
  do {
   System.out.println(b); 
   b++;
  } while (b <= -1);


 }

}

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Sunday, December 28, 2014

Java Tutorial For Beginners 11 - The while Statements

package lesson1;

public class MyClass {

 public static void main(String[] args) {
      int a = 10;
      
      while (a >= 1)
      {
      System.out.println(a); 
      a--;
      }
        
    }

}

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Learning Java in simple and easy steps : A beginner's tutorial containing complete knowledge of Java Syntax Object Oriented Language, Methods, Overriding, Inheritance, Polymorphism, Interfaces, Packages, Collections, Networking, Multithreading, Generics, Multimedia, Serialization, GUI

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Java Tutorial For Beginners 10 - switch Statement in Java

package lesson1;

public class MyClass {

 public static void main(String[] args) {
        int score = 80;
        //  byte, short, int, or char.
        switch (score)
        {
        case 100 : 
        case 95 : 
        case 90 :
         System.out.println("Very good");
         break;
        case 80 :
        case 60 :
         System.out.println("Good");
         break;
        case 40 :
         System.out.println("OK");
         break;
        default :
         System.out.println("The grades are not defined");
         break;
        }
        
    }

}

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Learning Java in simple and easy steps : A beginner's tutorial containing complete knowledge of Java Syntax Object Oriented Language, Methods, Overriding, Inheritance, Polymorphism, Interfaces, Packages, Collections, Networking, Multithreading, Generics, Multimedia, Serialization, GUI

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Sunday, December 21, 2014

Java Tutorial For Beginners 8 - IF ... ELSE Statements and Relational O...

package lesson1;

public class MyClass {
 /*
 == is equal to
 != is not equal to
 > is greater than
 < is less than
 >= is greater than or equal to
 <= is less than or equal to
 */
 public static void main(String[] args) {
        int x = 10;
        
        if (x <= 20) {
         System.out.println("yes x == 10");
        } 
        else {
         System.out.println("no x != 10");
        }
    }

}

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Saturday, December 20, 2014

Java Tutorial For Beginners 5 - Getting User Input using Java

package lesson1;

import java.util.Scanner;
public class MyClass {

 public static void main(String[] args) {
   Scanner scan = new Scanner (System.in);
      System.out.println("Enter some String");
      
      String user_input_string = scan.nextLine();
      long user_input_Long =scan.nextLong();
      
      System.out.println("The entered String is");
      System.out.print(user_input_string);  
      
      System.out.println("The entered String is");
      System.out.print(user_input_Long);    
    }

}

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Thursday, December 18, 2014

Java Tutorial For Beginners 4 - Variables and Types in Java

package lesson1;

public class MyClass {
 /*
 byte (number, 1 byte)
 short (number, 2 bytes)
 int (number, 4 bytes)
 long (number, 8 bytes)
 float (float number, 4 bytes)
 double (float number, 8 bytes)
 char (a character, 2 bytes)
 boolean (true or false, 1 byte)*/
 public static void main(String[] args) {
  int my_int = 10;
  float my_float = (float) 6.7;
  double my_double = 111.77;
  char my_char = 'A';
  boolean my_bool = true;
  System.out.println(my_int);
  System.out.println(my_float);
  System.out.println(my_double);
  System.out.println(my_char);
  System.out.println(my_bool);
 }

}

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Wednesday, December 17, 2014

Java Tutorial For Beginners 3 - Creating First Java Project in Eclipse IDE

package lesson1;

public class MyClass {

 public static void main(String[] args) {
  System.out.println("Hello Youtube");
 }

}

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Saturday, December 13, 2014

C Programming for Beginners 24 - Strings in C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main()
{
 char string1[12] = "Hello";
 char string2[12] = "world";
 char string3[12];

 strcpy(string3,string1); /// strcpy(dest ,source)
 strcat(string1,string2); /// add string 2 to string 1
 int length_string1 = strlen(string3);

 printf("strcpy = %s \n",string3);
 printf("strcat = %s \n",string1);
 printf("strlen = %d \n",length_string1);

 int value = strcmp(string1,string2);
 printf("strcmp = %d \n",value);
 return 0;
}

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Monday, December 8, 2014

C Programming for Beginners 23 - Passing Pointers as Function Arguments

#include <stdio.h>
#include <stdlib.h>
///A pointer is a variable whose value is the address of another variable

int getSum(int *array_val,int size)
{
    int sum=0;
    for(int i=0;i<size;i++)
    {
        sum += array_val[i];
    }
    return sum;
}

int main()
{
  int my_array[4]={10,20,30,40};
  int mySum = getSum(my_array,4);
  
  printf("the value of my sum is= %d",mySum)
  
}

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C Programming for Beginners 22 - Array of pointers

#include <stdio.h>
#include <stdlib.h>
///A pointer is a variable whose value is the address of another variable

void getValue(int *my_pointer)
{
    *my_pointer = 10000;///  &get_the_value=10000
    return;
}

int main()
{
  int get_the_value;
  getValue(&get_the_value);

  printf("the value of get_the_value = %d",get_the_value);
}

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Thursday, December 4, 2014

C Programming for Beginners 21 - Arrays in C

#include <stdio.h>
#include <stdlib.h>
///A pointer is a variable whose value is the address of another variable
int main()
{
  int val=30;
  int *pointer_p;
  pointer_p = &val;

  printf("address of val = %x \n", &val);

  printf("value of pointer variable = %x  \n", pointer_p);

  printf("value of *pointer = %d  \n", *pointer_p);
}

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C Programming for Beginners 20 - Passing Arrays as Function Arguments in C

#include <stdio.h>
#include <stdlib.h>

int ArraySum(int MyArray[],int size)
{
    int sum = 0;
   for(int i=0; i < size ;i++)
  {
     ///sum = sum + MyArray[i];
     sum += MyArray[i];
  }
    return sum;
}
int main()
{
  int MyNumberArray [8] = {20,30,60,50,55,30,100,100};///245 +100 +100 =445
  int sum_of_array = ArraySum(MyNumberArray, 8);

  printf("Arra Sum = %d ",sum_of_array);

}

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Tuesday, December 2, 2014

How To Fix MSVCP110.dll is Missing or Not Found Errors

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Wednesday, December 31, 2014

Tuesday, December 30, 2014

Monday, December 29, 2014

Sunday, December 28, 2014

Sunday, December 21, 2014

Saturday, December 20, 2014

Thursday, December 18, 2014

Wednesday, December 17, 2014

Saturday, December 13, 2014

Monday, December 8, 2014

Thursday, December 4, 2014

Tuesday, December 2, 2014

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