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Articles on Trending Technologies
Technical articles with clear explanations and examples
Set the base time zone offset to GMT in Java
In order to set the base time zone to GMT in Java, we use the setRawOffset(int offsetMillis) method. The java.util.TimeZone.setRawOffset(int offsetMillis) method set the base timezone offset to GMT.Declaration − The java.util.TimeZone.setRawOffset(int offsetMillis) method is declared as follows −public abstract void setRawOffset(int offsetMillis)where offsetMillis is the given base time zone offset to GMT.Let us set the base timezone offset to GMT in Java −Exampleimport java.util.*; public class Example { public static void main( String args[] ) { // creating default object of TimeZone TimeZone obj = TimeZone.getDefault(); System.out.println("Default timezone object: ...
Read MoreReferencing Subclass objects with Subclass vs Superclass reference
In java inheritance some of the basic rules includes −Object relation of Superclass (parent) to Subclass (child) exists while child to parent object relation never exists.This means that reference of parent class could hold the child object while child reference could not hold the parent object.In case of overriding of non static method the runtime object would evaluate that which method would be executed of subclass or of superclass.While execution of static method depends on the type of reference that object holds.Other basic rule of inheritance is related to static and non static method overriding that static method in java ...
Read MoreJava Program to split a string with dot
Let’s say the following is our string.String str = "Java is a programming language. James Gosling developed it.";We will now see how to split a string using the split() method. Include the delimiter as the parameter.String[] strSplit = str.split("\.");Above, we have split the string with dot as you can see under the split methods parameter.The following is an example.Examplepublic class Demo { public static void main(String[] args) { String str = "Java is a programming language. James Gosling developed it."; System.out.println("String: "+str); String[] strSplit = str.split("\."); System.out.println("Splitting ...
Read MoreDisplay hour in KK (00-11) format in Java
The “KK” format in Java Date is used to display hour in 00-11.. Use SimpleDateFormat("KK") to get the same format −// displaying hour in KK format SimpleDateFormat simpleformat = new SimpleDateFormat("KK"); String strHour = simpleformat.format(new Date()); System.out.println("Hour in KK format = "+strHour);Above, we have used the SimpleDateFormat class, therefore the following package is imported −import java.text.SimpleDateFormat;The following is an example −Exampleimport java.text.Format; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Calendar; public class Demo { public static void main(String[] args) throws Exception { // displaying current date and time ...
Read MoreSubstitute tokens in a String in Java
To substitute tokens in a String in Java, we use the Message Format class. The Message Format class provides a means to produce concatenated messages which are not dependent on the language. The Message Format class extends the Serializable and Cloneable interfaces.Declaration − The java.text.MessageFormat class is declared as follows −public class MessageFormat extends FormatThe MessageFormat.format(pattern, params) method formats the message and fills in the missing parts using the objects in the params array matching up the argument numbers and the array indices.The format method has two arguments, a pattern and an array of arguments. The pattern contains placeholder in ...
Read MoreDisplay the maximum of three integer values in Java
The following is an example displaying the maximum of three integer values.Examplepublic class Demo { public static void main(String[] args) { int val1 = 10; int val2 = 20; int val3 = 30; System.out.println("Number 1 = "+val1); System.out.println("Number 2 = "+val2); System.out.println("Number 3 = "+val3); if (val2 > val1) { val1 = val2; } if (val3 > val1) { val1 = val3; ...
Read MoreSet Decimal Place of a Big Decimal Value in Java
We have the following BigDecimal value −BigDecimal val1 = new BigDecimal("37578975587.876876989");We have set the decimal place to be −int decPlaces1 = 3;Now, we will use the ROUND_DOWN field to set the rounding mode to round towards zero −// ROUND_DOWN val1 = val1.setScale(decPlaces1, BigDecimal.ROUND_DOWN); String str1 = val1.toString(); System.out.println("Result = "+str1);To set decimal place of a BigDecimal value in Java, try the following code −Exampleimport java.math.BigDecimal; public class Demo { public static void main(String[] argv) throws Exception { int decPlaces1 = 3; int decPlaces2 = 5; ...
Read MoreDisplay the minimum of three integer values in Java
The following is an example displaying the minimum of three integer values.Examplepublic class Demo { public static void main(String[] args) { int val1 = 99; int val2 = 87; int val3 = 130; System.out.println("Number 1 = "+val1); System.out.println("Number 2 = "+val2); System.out.println("Number 3 = "+val3); if (val2 < val1) { val1 = val2; } if (val3 < val1) { val1 = val3; ...
Read MoreTruncate BigDecimal value in Java
The truncate BigDecimal value in Java, try the following code.Here, we have taken two BigDecimla values and set the round mode for truncating the decimal values −Exampleimport java.math.BigDecimal; public class Demo { public static void main(String[] argv) throws Exception { int decPlaces1 = 3; int decPlaces2 = 5; BigDecimal val1 = new BigDecimal("37578975587.876876989"); BigDecimal val2 = new BigDecimal("62567875598.976876569"); System.out.println("Value 1 : "+val1); ...
Read MoreHow to format message with integer fillers in Java
To format message with integer fillers in Java, we use the MessageFormat class. The MessageFormat class gives us a way to produce concatenated messages which are not dependent on the language. The MessageFormat class extends the Serializable and Cloneable interfaces.Declaration − The java.text.MessageFormat class is declared as follows −public class MessageFormat extends FormatThe MessageFormat.format(pattern, params) method formats the message and fills in the missing parts using the objects in the params array matching up the argument numbers and the array indices.The format method has two arguments, a pattern and an array of arguments. The pattern contains placeholder in {} curly ...
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