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To convert hex string to byte array, you need to first get the length of the given string and include it while creating a new byte array.byte[] val = new byte[str.length() / 2];Now, take a for loop until the length of the byte array.for (int i = 0; i < val.length; i++) { int index = i * 2; int j = Integer.parseInt(str.substring(index, index + 2), 16); val[i] = (byte) j; }Let us see the complete example.Example Live Demopublic class Demo { public static void main(String args[]) { String str = "p"; ... Read More
To convert byte[] to String, firstly let us declare and initialize a byte array.// byte array byte[] arr = new byte[] {78, 79, 33};Now take a String and include the array in it.String str = new String(arr);Let us see the complete example to convert byte array to String.Example Live Demopublic class Demo { public static void main(String args[]) { // byte array byte[] arr = new byte[] {78, 79, 33}; String str = new String(arr); // string System.out.println("String = "+str); } }OutputString = NO!
In ancient times the food was preserved by conventional techniques like salting and pickling which were not helpful all the time. These days refrigerators are utilized to protect food for long periods by cooling it.This cooling procedure keeps bacteria away from attacking and ruining the food, which thus lessens food wastage. The refrigerator is one innovation that has positively changed the way we live. It has made it feasible for everybody to store or preserve food for long periods of time.A Refrigerator functions on 2 basic principles:As a fluid dissipates, it absorbs the warmth from the surrounding ranges.The inverse happens ... Read More
Here is our string.String str = "Asia is a continent!";Now let us use a byte array and the getBytes() method to fulfill our purpose.byte[] byteVal = str.getBytes();Now, if we will get the length of the array, it would return the length as shown in the complete example below −Example Live Demopublic class Demo { public static void main(String args[]) { String str = "Asia is a continent!"; System.out.println(str); // converted to byte array byte[] byteVal = str.getBytes(); // getting the length System.out.println(byteVal.length); } }OutputAsia is a continent! 20
To convert Byte to numeric primitive data types, use the following methods −byteValue() shortValue() intValue() longValue() floatValue()Firstly, let us declare a Byte.Byte byteVal = new Byte("35");Now, let us see how to convert it to long type, for a simple example.long longVal = byteVal.longValue(); System.out.println(longVal);In the same way, you can convert it to other primitive data types as shown in the complete example below −Example Live Demopublic class Demo { public static void main(String args[]) { // byte Byte byteVal = new Byte("35"); byte b = byteVal.byteValue(); System.out.println(b); ... Read More
You can select the first and last data row using MIN() and MAX(). The syntax is as follows −SELECT * FROM yourTableName WHERE yourColumnName = (SELECT MIN(yourColumnName) FROM yourTableName) UNION SELECT * FROM yourTableName WHERE yourColumnName = (SELECT MAX(yourColumnName) FROM yourTableName) ;To understand the above syntax, let us create a table. The query to create a table is as follows −mysql> create table FirstAndLastDataDemo -> ( -> EmployeeId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> EmployeeName varchar(20), -> EmployeeAge int -> ); Query OK, 0 rows affected (0.59 sec)ExampleInsert some records in the table using ... Read More
To compare two Java short arrays, use the Arrays.equals() method.Let us first declare and initialize some short arrays.short[] arr1 = new short[] { 20, 15, 35, 55, 69 }; short[] arr2 = new short[] { 20, 15, 35, 55, 69 }; short[] arr3 = new short[] { 22, 19, 30, 45, 78 };Now let us compare any two of the above arrays.Arrays.equals(arr1, arr2));In the same way, work it for other arrays and compare themExample Live Demoimport java.util.*; public class Demo { public static void main(String []args) { short[] arr1 = new short[] { 20, 15, 35, 55, ... Read More
Use valueOf() method to convert a String in Java to Short.Let us take a string.The following is an example −String myStr = "5";Now take Short object and use the valueOf() method. The argument should be the string we declared above.The following is an example.Short myShort = Short.valueOf(myStr);Let us now see the entire example to learn how to convert a string in Java to Short.Example Live Demopublic class Demo { public static void main(String []args) { String myStr = "5"; System.out.println("String: "+myStr); Short myShort = Short.valueOf(myStr); System.out.println("Short: "+myShort); } }OutputString: 5 Short: 5
A great many people now purchase laptops for their processing needs and need to settle on the choice between getting either a Solid State Drive (SSD) or Hard Disk Drive (HDD) as the storage component. So which of the two is the better decision, an SSD or HDD?There's no straightforward response to this question; every buyer has different necessities and we need to evaluate our choice in light of those requirements, your preferences and obviously the cost.Despite the fact that the cost of SSDs has been falling, the cost per gigabyte advantage is still firm with HDDs. However, in the ... Read More
Using toString() method to convert Short to string. Firstly, let us take a short primitive datatype and initialize a short value.short myShort = 55;Now let us include this value to the following Short object.Short s = new Short(myShort);Convert the above given Short to string using the toString() method as shown in the complete example below.Example Live Demopublic class Demo { public static void main(String []args) { short myShort = 55; Short s = new Short(myShort); System.out.println("Short: "+s); String myStr = s.toString(); System.out.println("String: "+myStr); } }OutputShort: 55 String: 55