Java Basic Activities : Do While Loop

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Code:
=====================

import java.util.Scanner;

public class Test36_Pereda_dowhileloop {

public static void main(String [] args) {

Scanner input = new Scanner(System.in);


int i =1, nums;

do {

i++;
System.out.print("Enter a number: ");
nums = input.nextInt();

System.out.println("The number you entered: " +nums);




}while(i <=5);


input.close();
}



}

Java Basic Activities: While Loop

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Code: 
==================


import java.util.Scanner;

public class Test35_Pereda_whileloop {

public static void main(String [] args) {

Scanner input = new Scanner(System.in);


int i =1, nums;

while(i <=5) {

i++;
System.out.print("Enter a number: ");
nums = input.nextInt();

System.out.println("The number you entered: " +nums);




}

input.close();
}

}

Java Basic Activities: For Loop

======================
Code: 
=======================

import java.util.Scanner;

public class Test34_Pereda_forloop {

public static void main(String [] args) {

Scanner input = new Scanner(System.in);


int i, nums;

for(i=1; i<=5; i++){

System.out.print("Enter a number: ");
nums = input.nextInt();

System.out.println("The number you entered: " +nums);




}

input.close();

}
}

Java Basic Activities: Logical Operators w/ nested else if

=========================
Code: 
===========================
import java.util.Scanner;

public class Test32_Pereda_Logicalland {

public static void main(String [] args) {

Scanner input = new Scanner(System.in);

int age, num1;


System.out.print("Enter a number: ");
num1 = input.nextInt();

System.out.print("enter your age: ");
age = input.nextInt();

if (num1 <100 && age> 60) {
   System.out.println("Congratulation you win a lucky prize!");

}

else {
System.out.println("Sorry , did not win any prize!");

}

input.close();
}

}
=====================================


========================
Code: 
========================

import java.util.Scanner;

public class Test33_Pereda_Challege {

public static void main(String [] args) {

System.out.println("=================================================================");
System.out.println("| Name:Sonny Pereda                                             |");
System.out.println("| Subject Code: CC101                                           |");
System.out.println("| Subject Title: Programming Language                           |");
System.out.println("| Activity no.33                                                |");
System.out.println("| Instructor: Clinton Reducto                                   |");
System.out.println("=================================================================");

Scanner input = new Scanner(System.in);
int num1;

System.out.println("\n\nEnter your grade in CC101:");
num1 = input.nextInt();



if (num1<=100 && num1>=98 ) {
System.out.println("Grade Point Equivalent: 1.0 ");
System.out.println("Exellent");

}
else if (num1<=97 && num1>=95 ) {
System.out.println("Grade Point Equivalent: 1.25 ");
System.out.println("Very good");

}

else if (num1<=94 && num1 >=92 ) {
System.out.println("Grade Point Equivalent: 1.75 ");
System.out.println("Execent");

}

else if (num1<=91 && num1 >=89 ) {
System.out.println("Grade Point Equivalent: 2.0 ");
System.out.println("Very good");

}

else if (num1<=88 && num1 >=86 ) {
System.out.println("Grade Point Equivalent: 2.25 ");
System.out.println("Very good");

}

else if (num1<=85 && num1 >=83 ) {
System.out.println("Grade Point Equivalent: 2.5 ");
System.out.println("Fair");

}

else if (num1<=80 && num1 >=82 ) {
System.out.println("Grade Point Equivalent: 2.75 ");
System.out.println("Very good");

}

else if (num1<=79 && num1 >=77 ) {
System.out.println("Grade Point Equivalent: 3.0 ");
System.out.println("Passed");

}

else if (num1<=76 && num1 >=75 ) {
System.out.println("Grade Point Equivalent: 3.0 ");
System.out.println("Failed");

}
else {System.out.println("Your faile");



}

input.close();
}


}

Java Basic Activities: Try Catch w/ nested else if statement | Invalid Character

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Code: 
==============================

import java.util.Scanner;

public class Test31_Pereda_Challege {

public static void main(String [] args) {


int pvail;
Scanner input = new Scanner(System.in);

try {

System.out.println("Enter a number:");
pvail = input.nextInt();




if (pvail <= -1) {
System.out.println("The number you entered is negative");

}


else if (pvail >= 1) {
System.out.println("The number you entered is positive");

}

else if (pvail == 0) {
System.out.println("The number you entered is zero");

}


} catch (Exception e) {
System.out.println("Character are not allowed!!!!");

input.close();

}

}

}




========================================================

Java Basic Activities: If else and nested else if statements

==========================
Code: 
===========================
public class Test27_Pereda_ifelse {

public static void main(String [] args) {

int m=100, n=100;

if (m==n )  {

System.out.println("m is equal to n");

}

else {
System.out.println("m is not equal to n");


}
}

}

================================


===========================
Code: 
==============================
import java.util.Scanner;

public class Test28_Pereda_ifelse2 {

public static void main(String [] args) {

int pvail;
Scanner input = new Scanner(System.in);

System.out.println("Enter a number from 1 to 3: ");
pvail = input.nextInt ();

 if  (pvail ==2) {
System.out.println("Congratualions!!! You avail the promo ");
 
 }

 else {
System.out.println("Thank you for joining");
 
 }
  input.close();

}

}

===========================================================

======================

Code: 

=======================

import java.util.Scanner;

public class Test29_Pereda_Challege {

public static void main(String [] args) {

int pvail;

Scanner input = new Scanner(System.in);

System.out.println("Enter your age: ");

pvail = input.nextInt ();

 if  (pvail >=18) {

System.out.println("You are eligible to vote! ");

 

 }

 

 else {

System.out.println("Not eligible to vote!");

 

input.close();

  }

}

}

============================================================



============================
Code: 
==============================
import java.util.Scanner;

public class Test30_Pereda_nestedifelse {

public static void main(String [] args) {


int pvail;
Scanner input = new Scanner (System.in);

System.out.println("Enter a number from 1 to 4: ");
pvail = input.nextInt();


if (pvail == 1) {
System.out.println("Congratulation!!!! Your Discount: 10%");

}

else if (pvail == 2) {
System.out.println("Congratulation!!!! Your Discount: 50%");

}

else if (pvail == 3) {
System.out.println("Sorry you didn't avail the Discount");

}

else if (pvail == 4) {
System.out.println("Congratulation!!!! Your Discount: 20%");

}

else {
System.out.println("The number you entered is invalid. Enter a number from 1 to 4");

}

input.close();


}

}

===================================

Java Basic Activities: Assignment Operators

======================
Code: 
======================
public class Test25_Pereda_Challege {

    public static void main(String [] args) {

int a = 5, b = 5;

a +=b;
System.out.println("The sum of the first and second:" + a);
a -=b;
System.out.println("The sum of the first and second:"  + a);
a *=b;
System.out.println("The sum of the first and second:" + a);
a /=b;
System.out.println("The sum of the first and second:"  + a);




    }

}
==============================================

Sample no. 2



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Code: 
=========================
public class Test26_Pereda_Assignment {

public static void main(String [] args) {

int a = 5, c;

c = a;
System.out.println("Variable C is equal to :" + c);
c += a;
System.out.println("Variable C is equal to :" + c);
c -= a;
System.out.println("Variable C is equal to :" + c);
c *= a;
System.out.println("Variable C is equal to :" + c);
c /= a;
System.out.println("Variable C is equal to :" + c);



}

}

Java Basic Activities: Increment and Decrement Operators

=====================
Code: 
=======================


public class Test23_Pereda_increment {

public static void main(String [] args) {

int x= 1, y = 1;

   ++x;
   ++y;
   
   System.out.println("Value of x: " +x);
   System.out.println("Value of x: " + ++x);
   System.out.println("Value of x: " + ++x);
   
   System.out.println("\n\nValue of y: " +y);
   System.out.println("Value of x: " + ++y);
   System.out.println("Value of x: " + ++y);
   
   
    


}

}
==================================
Sample no. 2



=======================
Code: 
======================


public class Test24_Pereda_Challege {

public static void main(String [] args) {

int x= 1, y = 1;

   ++x;
   ++y;
   
   System.out.println("Value of x: " +x);
   System.out.println("Value of x: " + ++x);
   System.out.println("Value of x: " + ++x);
   
   System.out.println("\n\n\nValue of y: " +y);
   System.out.println("Value of x: " + ++y);
   System.out.println("Value of x: " + ++y);
   
   System.out.println("\n\n\nValue of x: " + --x);
   System.out.println("Value of y: " + --y);
   
   
   
   
}



}

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Java Basic Activities: Getting the user's input

===============================
Code: 
===============================

import java.util.Scanner;

public class Test17_Pereda_Scanner {

public static void main(String [] args) {

Scanner input = new Scanner(System.in);

String name1;
String name2;

System.out.println("Enter Your Full Name:");
name1 = input.nextLine();

System.out.println("What is Your Last Name:");
name2 = input.nextLine();


System.out.println("\n\nYour full name:" +name1);
System.out.println("\n\n Your last name:" +name2);


input.close();


}
}

============================================

Get the user's integer input



import java.util.Scanner;

public class Test18_Pereda_Scannerint {

public static void main(String [] args) {   

Scanner input = new Scanner(System.in);

int num1, num2;

System.out.println("Enter two intergers:");

num1 = input.nextInt();
num2 = input.nextInt();

System.out.println("The number you entered: " + num1 + " and " +num2);

input.close();
     }

}

==================================================================

Get the user's integer input w/ double and float data type




==========================
Code
==========================
import java.util.Scanner;

public class Test19_Pereda_Scannerfloat {

public static void main(String [] args) {  

Scanner input = new Scanner(System.in);

float num1;
double num2;

System.out.println("Enter num1:");
num1 = input.nextFloat();

System.out.println("Enter num2:");
num2 = input.nextDouble();

System.out.println("\n\nThe number you entered: " + num1 + " and " +num2);

input.close();

}
}


=====================================================


Get the user's string input

======================================================




import java.util.Scanner;

public class Test20_Pereda_Challenge {

public static void main(String [] args) {

Scanner input = new Scanner(System.in);

String name1;
String name2;
String name3;
String name4;
String name5;
String name6;
String name7;
String name8;
String name9;
String name10;



System.out.println("Enter your Firstname:");
name1 = input.nextLine();

System.out.println("Enter your Lastname:");
name2 = input.nextLine();

System.out.println("Enter your age:");
name3 = input.nextLine();

System.out.println("Enter your birthdate:");
name4 = input.nextLine();

System.out.println("Enter your address:");
name5 = input.nextLine();

System.out.println("Enter your course:");
name6 = input.nextLine();

System.out.println("Enter your Year and Section:");
name7 = input.nextLine();

System.out.println("Enter the Subject Code:");
name8 = input.nextLine();

System.out.println("Enter the Subject Title:");
name9 = input.nextLine();

System.out.println("Enter the fullname of your Instructor in java:");
name10 = input.nextLine();



System.out.println("=========================");
System.out.println("Firstname:" +name1);
System.out.println("Lastname:" +name2);
System.out.println("Age:" +name3);
System.out.println("Birthdate:" +name4);
System.out.println("Address:" +name5);
System.out.println("Course:" +name6);
System.out.println("Year and Section:" +name7);
System.out.println("Subject Code:" +name8);
System.out.println("Subject Title:" +name9);
System.out.println("Name of Instructor in java:" +name10);
System.out.println("=======================");


input.close();

}

}



=====================================================

Get the user's integer input and display the sum

=======================================================


=============================
Code: 
====================

import java.util.Scanner;

public class Test21_Pereda_operator {

public static void main(String [] args) {

Scanner input = new Scanner(System.in);

int num1, num2, sum;

System.out.println("Enter First num: ");
num1 = input.nextInt();

System.out.println("Enter Second num :");
num2 = input.nextInt();

sum = num1 + num2;

System.out.println("\n\n\nThe sum of the first and 2nd numbers:" + sum);



input.close();

}

}

==============================================

Get the user's integer input and display the sum , difference, product and quotient of the two integers



=====================
Code:
=====================

import java.util.Scanner;

public class Test22_Pereda_Challenge {

public static void main(String [] args) {

Scanner input = new Scanner(System.in);

int num1, num2, sum, diff, product, qou;

System.out.println("Enter First num: ");

num1 = input.nextInt();

System.out.println("Enter Second num :");

num2 = input.nextInt();

sum = num1 + num2;

diff = num1 - num2;

product = num1 * num2;

qou = num1 / num2;

System.out.println("\n\nThe sum of the first and 2nd numbers:" + sum);

System.out.println("The difference of the first and 2nd numbers:" + diff);

System.out.println("The product of the first and 2nd numbers:" + product);

System.out.println("The quotient of the first and 2nd numbers:" + qou);

input.close();

}

}

==============================================

Java Basic Activities: Int, float and Double Data type

public class Test13_Pereda_int {

public static void main(String [] args) {

int num1,num2;

num1 = 5;

num2 = 10;

System.out.println("Variable num1 is equal to " +num1);

System.out.println("Variable num1 is equal to " +num2);

    }

}

===================================================================

Float and Double Data type

public class Test14_Pereda_doublefloat {

public static void main(String [] args) {

float num1 = 87.45f;

double num2 = 97.67;

System.out.println("Variable Num1: " + num1);

System.out.println("\n\nVariable Num1: " + num2);

}

}

============================================

Long Data Type 

===========================================

public class Test15_Pereda_long {

public static void main(String [] args) {

long num1 = 4353454443434233432L;

System.out.println("Value of Num1: " + num1);

    }

}

========================================

Boolean Data type 

========================================

public class Test16_Pereda_boolean {

public static void main(String [] args) {

boolean x = true;

boolean y = false;

System.out.println("Value of x: " +x);

System.out.println("\n\nValue of y: " +y);

     }

}

===========================================

Java Basic Activities: String Data Type

Display the value of a variable w/ String Data Type



=============================
Code: 
=================================

public class Test10_Pereda {

public static void main(String [] args) {

String Fname = "Sonny";
String Lname = "Pereda";

System.out.println("The value of the variable Fname: " +Fname );
System.out.println("The value of the variable Lname: " +Lname );

}

}

========================================

Sample no. 2







public class Test11_Pereda {

public static void main(String [] args) {

String Fname, Lname;

Fname = "Sonny";
Lname = "Pereda";

System.out.println (Fname);
System.out.println (Lname);

}


}

======================================

Sample no. 3




public class Test12_Pereda {

public static void main(String [] args) {

String Fname,Lname,Age,Birthdate,Address,Course,Year,Code,Title,Instructor;

Fname = "Sonny";
Lname = "Pereda";
Age = "27";
Birthdate = "July 13, 1991";
Address = "Dayao, Roxas City";
Course = "BSCS";
Year = "1A";
Code = "CC102";
Title = "Programming Language 1 (Java)";
Instructor = "Sir Clinton U. Reducto";

System.out.println("Firstname: " +Fname );
System.out.println("Lastname: " +Lname );
System.out.println("Birthdate: " +Birthdate );
System.out.println("Age: " +Age );
System.out.println("Address: " +Address );
System.out.println("Course: " +Course );
System.out.println("Year & Section: " +Year );
System.out.println("Subject Code: " +Code );
System.out.println("Subject Title: " +Title );
System.out.println("Instructor: " +Instructor );

}
}


==============================================