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Q: What is a "NullPointerException" in Java, and how can it be resolved?
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Can NullPointerException be used with ArithmaticException using throws keyword in java?

No. You cannot throw or catch Null pointer exceptions

Throws statement in java?

throw new Throwable(); or throw new Error("Danger will Robinson!"); or throw new NullPointerException(); etc.

What is NullPointerException?

A NullPointerException is an exception thrown by the Java Virtual Machine when you try to access a variable as if it were an object when it is contains null. For example, the following code would throw a NullPointerException: String s; if (s.charAt(0) == 'c') // this line throws NullPointerException return "s[0] is 'c'";

How do you overcome problem of NullPointerException?

By making sure that we do a null check everytime before using reference variables.

What do you mean by NullPointer Exception?

NullPointerException - Is Thrown when attempting to access an object with a reference variable whose current value is null.

What is exception and list some of the common type of exception?

Exceptions are thrown when Java encounters an error. They are a fundamental part of the Java error handling system. In a nutshell, Java will throw an Exception when it encounters an error so that an exception handler can "handle" the error. For instance, if a calculator program is given the command "1/0", Java can throw an ArithmeticException which could be reported back to the user.Some common types are:ArithmeticException - thrown when arithmetic error has occurred, like dividing by 0IOException - thrown when an input or output error has occurred, like a file not foundArrayIndexOutOfBoundsException - thrown when a nonexistent element of an array is requested, like arr[-1]NullPointerException - thrown when some operation if performed on an object whose value is nll.

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Does Visual Java plus plus and Java Builder is different from the Java language?

Yes!Visual Java plus plus and Java Builder is different from the Java language?

Small Java-based programs are called?

Java applets

What are the different java technologies?

There are several types of Java technology. Some examples of Java software are Java ME, Java EE, Java SE, and Java Card. Java made the JAVA development kit for those that develop in Java. There is also Java Virtual machine and some class libraries. Java is also famous for its languages like Clojure, Beanshell, Groovy, Gosu, Rhino, Kotlin, JRuby, Scala, and Jython.

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Who create Java and when?

Who create Java & when? Why he create java ? What are mane functions of it?