What is the argument type of a program’s main() method

A program’s main() method takes an argument of the String[] type. In Core Java, the correct answer is: The argument type of a program’s main() method is an array of strings (String[]). The main() method is the entry point of a Java program, and it accepts an array of strings as its parameter. This array, commonly named args, contains … Read more

What is the purpose of the finally clause of a try-catch-finally statement

The finally clause is used to provide the capability to execute code no matter whether or not an exception is thrown or caught. The purpose of the finally clause in a try-catch-finally statement in Java is to define a block of code that will be executed whether an exception is thrown or not. This block … Read more

How many times may an object’s finalize() method be invoked by the garbage collector?

An object’s finalize() method may only be invoked once by the garbage collector. In Java, there is no guarantee on when or how many times the finalize() method of an object will be invoked by the garbage collector. The finalize() method is called by the garbage collector before it reclaims the memory occupied by an object, but … Read more

What is the purpose of the Runtime class?

The purpose of the Runtime class is to provide access to the Java runtime system. The Runtime class in Java provides a way to interact with the Java Virtual Machine (JVM) at runtime. It allows you to get information about the runtime environment, execute system processes, and manage the application’s runtime behavior. Some of the key purposes … Read more

Which Container method is used to cause a container to be laid out and redisplayed

validate() method is used to cause a container to be laid out and redisplayed. In Java, the validate() method is used to cause a container to be laid out and redisplayed. The validate() method is part of the java.awt.Container class, and it is used to validate the container’s components and layout. It ensures that the components … Read more