A composite number whose sum of digits equal to the sum of the digits of its prime factors.Ex: 58 = 2 x 29 (5 + 8 = 12) (2+ 2 + 9 = 12)Programpublic class SmithNumbers {    public static boolean isPrime(int number) {       int loop;   ... Read More

To compute the elapsed time of an operation in milliseconds in Java, we use the System.currentTimeMillis() method. The java.lang.System.currentTimeMillis() returns the current time in milliseconds.Declaration −The java.lang.System.currentTimeMillis() is declared as follows −public static long currentTimeMillis()The method returns time difference in milliseconds between the current time and midnight, January 1, 1970 ... Read More

Elements can be filled in a byte array using the java.util.Arrays.fill() method. This method assigns the required byte value to the byte array in Java. The two parameters required are the array name and the value that is to be stored in the array elements.A program that demonstrates this is ... Read More

A number is divisible by 11 if the difference between the sum of its alternative digits is divisible by 11.i.e. if (sum of odd digits) – ( sum of even digits) is 0 or divisible by 11 then the given number is divisible by 11.Programimport java.util.Scanner; public class DivisibleBy11 ... Read More

Following is an example which computes find LCM and GCD of two given numbers.Programimport java.util.Scanner; public class LCM_GCD {    public static void lcm(int a, int b){       int max, step, lcm = 0;       if(a > b){          max = step = ... Read More

To implement animation on border-right-width property with CSS, you can try to run the following codeExampleLive Demo                    div {             width: 500px;             height: 300px;         ... Read More

Use the @keyframes to animate. To implement animation on background with CSS, you can try to run the following codeExampleLive Demo                    div {             width: 400px;             height: 300px;             animation: myanim 3s infinite;          }          @keyframes myanim {             30% {                background: green bottom right/50px 50px;             }          }                        

The flex-shrink property shrinks the flex-item.You can try to run the following code to implement the CSS flex-shrink property. ExampleLive Demo                    .mycontainer {             display: flex;             background-color: orange;     ... Read More

To encode base64, you can use two functionalities −TO_BASE64()FROM_BASE64()The syntax for base64 encode is as follows −SELECT TO_BASE64(anyValue) as AnyVariableName;The syntax for base64 decode is as follows −SELECT FROM_BASE64(encodeValue) as anyVariableNameTo understand the above concept, let us use the above syntax −Case 1 − EncodeTo encode the value, use the to_base64(). ... Read More

The syntax for mass update with CASE WHEN/ THEN/ ELSE is as follows −UPDATE yourTableName set yourColumnName=case when yourColumnName=Value1 then anyUpdatedValue1 when yourColumnName=Value2 then anyUpdatedValue2 when yourColumnName=Value3 then anyUpdatedValue3 when yourColumnName=Value4 then anyUpdatedValue4 else yourColumnName end;To understand the above syntax, let us first create a table. The query to create ... Read More