BT-ICD

/**
 * Example: To find compound interest annually
 * Learning Reference: https://www.easycalculation.com/compound-interest.php
 * */
import java.util.Scanner;

public class CompoundInterestAnnually {
    public static void main(String[] args) {
        double p, r, amount;
        int n;

BT-ICD

package APTest2017Demo;

public class APArrayDemo1 {
    public static void main(String[] args) {
        int[][] arr = {{15,5,9,10},{12,16,11,6},{14,8,13,7}};
        int num =80;
        Position findPos = Successors.findPosition(num,arr);
        if(findPos!=null){
            System.out.println("Found at position : " + findPos);
        }

BT-ICD

/**
 * Example: To find HCF - Highest Common Factor (also called Greatest Common Divisor)
 * 60 and 40 is 20, i.e, HCF(60,40) = 20
 * 100 and 150 is 50, i.e, HCF(150,50) = 50
 * 144 and 24 is 24, i.e, HCF(144,24) = 24
 * 17 and 89 is 1, i.e, HCF(17,89) = 1
 * LCM of (72,120) = 360
 * LCM of (15,20) = 60
 * Learning Reference:
 * https://byjus.com/maths/lcm-of-two-numbers/

BT-ICD

/**
 * Example: To access data from MySQL database.
 * References:
 * https://dev.mysql.com/doc/connector-j/8.0/en/connector-j-usagenotes-statements.html
 * */
import java.sql.*;

public class JdbcDemo1 {
    public static void main(String[] args) {

BT-ICD

/**
 * Example: Fibonacci Sequence
 * In mathematics, the Fibonacci numbers, commonly denoted Fn, form a sequence, called the Fibonacci sequence, such that each number is the sum of the two preceding ones, starting from 0 and 1.
 * Reference: https://en.wikipedia.org/wiki/Fibonacci_number
 * Sample Series: 0	1	1	2	3	5	8	13	21	34	55	89	144	233	377	610	987	1597	2584	4181
 * */
public class FibonacciNumbersDemo {
    public static void main(String[] args) {
        int f0, f1, fn;
        int num = 20;

BT-ICD

package GenericDemo;

public class GenericDemoArrayIssue {
    public static void main(String[] args) {
        ColoredPoint[] cptArray = new ColoredPoint[1];
//        cptArray[0]= new Point();   //This is illegal because Point instances have fewer members (only x and y) than ColoredPoint instances (x, y and color). Attempting to access a Point instance's nonexistent color field from its entry in the ColoredPoint array would result in a memory violation (because not memory has been assigned to color) and ultimately crash the JVM.
        Point[] ptArray = cptArray; //This is legal because of covariance (an array of supertype references is a supertype of an array of subtype references). In this case, an array of point references is a supertype of an array of ColoredPoint references. Covariance is dangerous when abused. For Example line (ptArray[0] = new Point();) results in ArrayStoredException at runtime because a Point instance is not a ColoredPoint instance. Without this exception, an attempt to access the

BT-ICD

/**
 * Example: Generic Method with upper bound
 * The type parameter section specifies that T extends Comparable< T >only objects of classes that implement interface Comparable< T > can be used with this method.
 * In this case, Comparable is known as the upper bound of the type parameter.
 * By default, Object is the upper bound.
 * */
package GenericDemo;

public class GenericMethodUpperBoundDemo1 {
    public static void main(String[] args) {

BT-ICD

/**
 * Example: Array variables contain references to arrays. When you make an assignment to an array variable, it simply copies the reference. But it doesn’t copy the array itself.
 * To create a new copy of array java.util.Arrays provides a method named copyOf.
 * Reference:
 * https://books.trinket.io/thinkjava2/chapter7.html
 *
 * */
import java.util.Arrays;

public class ArraysByRefDemo {

BT-ICD

/**
 * Example: Conversion from binary to decimal
 * Reference: https://www.rapidtables.com/convert/number/binary-to-decimal.html, https://byjus.com/maths/binary-to-decimal-conversion/
 * Sample Data:
 * 11 - 3
 * 111 - 7
 * 101 - 5
 * 1111 - 15
 * 1001 - 9
 *

BT-ICD

/**
 * Example: Conversion from decimal to octal
 * Reference: https://www.rapidtables.com/convert/number/decimal-to-binary.html, https://byjus.com/maths/convert-decimal-to-octal/
 * Sample Data:
 * 11 - 13
 * 21 - 25
 * 57 - 71
 * 17 - 21
 *
 * Example 1: Convert (127)10 to Octal.