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In order to get the hyperbolic sine of a given value in Java, we use the java.lang.Math.sinh() method. The sinh() method accepts an argument in radians and returns the hyperbolic sine of the argument which acts as the angle.Declaration − The java.lang.Math.sinh() is declared as follows −public static double sinh(double x)where x is the angle in radians.Let us see a program to get the hyperbolic sine of a given value in Java.Example Live Demoimport java.lang.Math; public class Example { public static void main(String[] args) { // get two double numbers in degrees double x ... Read More
The zip_entry_name() function returns the name of the zip archive file.Syntaxzip_entry_name(zip_entry)Parameterszip_entry − A zip file opened with zip_open() is to be mentioned here.ReturnThe zip_entry_name() function returns the name of the zip archive file.The following is an example. Let’s say we have 5 files in the zip archive "new.zip".ExampleOutputFile Name = amit.txt File Name = peter.txt File Name = result.html File Name = demo.java File Name = settings.ini
To get the base 10 logarithm of value in Java, we use the java.lang.Math.log10() method. This method returns the log of value to the base 10 in the form of a double. If a number is 10n, then the result is n. If the value passed is NaN or negative, the result is NaN. If the value passed is positive infinity, then the value returned is positive infinity. When the parameter is positive zero or negative zero, then negative infinity is returned.Declaration −The java.lang.Math.log10() method is declared as follows −public static double log10(double a)where a is a value whose base ... Read More
The zip_entry_open() function is used to open a zip archive entry for reading.Syntaxzip_entry_open(zip_file,zip_entry,mode)Parameterszip_file − The zip file to be readzip_entry − The zip entry to open.mode − The type of access needed for zip archiveReturnThe zip_entry_open() function Returns TRUE on success, or FALSE on failure.Example
To check whether a String contains only unicode letters or digits in Java, we use the isLetterOrDigit() method and charAt() method with decision-making statements.The isLetterOrDigit(char ch) method determines whether the specific character (Unicode ch) is either a letter or a digit. It returns a boolean value, either true or false.Declaration −The java.lang.Character.isLetter() method is declared as follows −public static boolean isLetter(char ch)The charAt() method returns a character value at a given index. It belongs to the String class in Java. The index must be between 0 to length()-1.Declaration −The java.lang.String.charAt() method is declared as follows −public char charAt(int index)Let us ... Read More
The zip_open() function opens a zip file for reading. It returns an open zip file on success and FALSE on failure.Syntaxzip_open(zip_file)Parameterszip_file − The path of the file to be opened.ReturnThe zip_open() function returns an open zip file on success and FALSE on failure.ExampleOutputCompressed: 90 Compressed: 12 Compressed: 67
In order to check if a String has only Unicode letters in Java, we use the isDigit() and charAt() methods with decision-making statements.The isLetter(int codePoint) method determines whether the specific character (Unicode codePoint) is a letter. It returns a boolean value, either true or false.Declaration −The java.lang.Character.isLetter() method is declared as follows −public static boolean isLetter(int codePoint)Here, the parameter codePoint represents the character to be checked.The charAt() method returns a character value at a given index. It belongs to the String class in Java. The index must be between 0 to length()-1.Declaration −The java.lang.String.charAt() method is declared as follows −public ... Read More
To lag a column in MySQL, first, let us create a table. The query to create a table is as follows −mysql> create table LagDemo -> ( -> UserId int, -> UserValue int -> ); Query OK, 0 rows affected (1.74 sec)ExampleInsert some records in the table using insert command. The query is as follows −mysql> insert into LagDemo values(12, 158); Query OK, 1 row affected (0.61 sec) mysql> insert into LagDemo values(18, 756); Query OK, 1 row affected (0.21 sec) mysql> insert into LagDemo values(15, 346); Query OK, 1 row affected (0.25 sec) mysql> insert ... Read More
In order to get the hyperbolic tangent of a given value in Java, we use the java.lang.Math.tanh() method. The tanh() method accepts an argument in radians and returns the hyperbolic tan of the argument which acts as the angle.Declaration −The java.lang.Math.tanh() is declared as follows −public static double tanh(double x)where, x is the angle in radians.Let us see a program to get the hyperbolic tangent of a given value in Java.Example Live Demoimport java.lang.Math; public class Example { public static void main(String[] args) { // get two double numbers in degrees double x = ... Read More
The zip_close() function is used to close the zip file archive. The zip is opened by the zip_open() function.Syntaxzip_close(zip_file)Parameterszip_file − A zip file opened with zip_open() is to be mentioned here. This is the file we want to close.ReturnThe zip_close() function returns nothing.ExampleOutputFile will be closed now