Dereferencing means accessing an object from the heap using a reference variable Or we can say It is a process of accessing the referred value by a reference. Dereferencing’s main purpose is to place the memory address (where the actual object presents) into the reference. Example: Object ob = new Object(); String st = ob.toString(); …
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There are many types of errors that can be encountered while writing a Java Program. The errors can be with the Syntax or the Semantics of the Java program. The Java Community tries hard to avoid these errors at compile time itself, so that a programmer does not have to run the program to encounter …
Here in this article you will learn about difference between error and exception in java. In exception hierarchy we need to see where these two classes exist. Throwable Class is the root for the Java Exception Hierarchy. Throwable contains two chain of classes, Exception and Error. Exceptions Errors Mostly because of our programs. These occur …
In this tutorial you will learn about the error could not find or load main class in eclipse and the ways that could solve this error. When class loader is unable to load the main class of our application then this error will come. Many reasons are there for this has to be happen. In …
Error could not find or load main class in Eclipse – 3 Ways to Fix Read More »
Here you will learn to solve error “cannot make a static reference to the non-static method” or “non static method cannot be referenced from a static context”. Lets take one example where this error occurs. When you will compile below code then you will get an error. public class DemoClass { void print() { System.out.println(“Hello …
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In this tutorial you will learn to solve java.lang.ClassNotFoundException: sun.jdbc.odbc.JdbcOdbcDriver error. If you are using jdk 1.8 and trying to connect java with MS Access database then you will get error java.lang.ClassNotFoundException: sun.jdbc.odbc.JdbcOdbcDriver. This is because java 8 or jdk 1.8 does not support jdbc odbc bridge. To connect with ms access you have to import some …
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The error javac is not recognized as an internal or external command arises when we try to compile any java source file using javac command. The reason for this error is because the path of javac command is not set properly. This error can be solved easily by setting javac compiler path in environment variables. …
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This article will look at how to solve the above-given Class Cast Exception. This ClassCast Exception occurs at runtime when we improperly typecast an object of a class to a related class of which it is not an instance. Now, what does it mean when the exception says: cannot be cast to java.lang.Comparable. Let us …
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