Core java

In this post, we will see how to read UTF-8 Encoded Data. Sometimes, we have to deal with UTF-8 Encoded Data in our application. It may be due localization or may be processing data from user input. There are multiple ways to read UTF-8 Encoded Data in Java. Using Files’s newBufferedReader() We can use java.nio.file.Files's […]

In this post, we will see how to write UTF-8 Encoded Data. Sometimes, we have to deal with UTF-8 Encoded Data in our application. It may be due localization or may be processing data from user input. We will use Hindi language sentences to write in file. There are three ways to write UTF-8 Encoded […]

In this post, we will see about modulo or modulus operator in java. Modulo operator(%) is used to find the remainder when one integer is divided by another integer. Modulo operator Syntax [crayon-6a281f69d75ef740587313/] We can’t use modulo with any other data type other than int. If we use it with other data types, it will […]

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In this post, we will see about java.lang.reflect.InvocationTargetException. You might get java.lang.reflect.InvocationTargetException while working with reflection in java. Reason for java.lang.reflect.InvocationTargetException Reflection layer throws this exception when calling method or constructor throws any exception. java.lang.reflect.InvocationTargetException wraps underlying exception thrown by actual method or constructor call. Let’s see this with the help of example: Create a […]

In this post, we will see how to define global variables in java. Unlike C/C++, there are no standard global variables in java but you can still define global variables that can be used across all classes. Global variables are those variables that can be accessed across all the classes. Java does not support global […]

In this post, we will see how to resolve java.sql.SQLException: No suitable driver found for JDBC. There can be multiple reasons for this exception and let’s see it one by one. connector jar is not on classpath you need make sure you have connector jar on classpath. For example: If you are using mysql to […]

In this post, we will see about how to implement static block in java. Here are some important points about static block in java. Static block is used for static initializations of a class Static block is executed only once when either you create an object of the class or access static member of the […]