What is an applet?

Java Programming Language > Applet Programming > Benefits of OOP

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Answer:

An applet is a Java program that runs in a Web browser. An applet can be a fully functional Java application because it has the entire Java API at its disposal.

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109. An applet extend which class?

Answer: An applet extends java.applet.Applet class.

# Tutorial: Benefits of OOP

Question: Applet Programming Short

110. Explain garbage collection in Java?

Answer: It uses garbage collection to free the memory. By cleaning those objects that is no longer reference by any of the program.

# Tutorial: Benefits of OOP

Question: Inheritance in java Short

111. Define immutable object?

Answer: An immutable object can

# Tutorial: Benefits of OOP

Question: Interface in java Short

Answer: It is a collection of element which cannot contain duplicate elements. The Set interface contains only methods inherited from Collection and adds the restriction that duplicate elements are prohibited.

# Tutorial: Benefits of OOP

Question: Interface in java Short

114. Explain TreeSet?

Answer: It is a Set implemented when we want elements in a sorted order.

# Tutorial: Benefits of OOP

Question: Interface in java Short

115. What is Comparable Interface?

Answer: It is used to sort collections and arrays of objects using the collections.sort() and java.utils. The objects of the class implementing the Comparable interface can be ordered.

# Tutorial: Benefits of OOP

Question: Array in java Short

116. Difference between throw and throws?

Answer: It includes:

Throw is used to trigger an exception where as throws is used in declaration of exception.
Without throws, Checked exception cannot be handled where as checked exception can be propagated with throws.

# Tutorial: Benefits of OOP
Question: Managing Errors and Exception Short

117. Explain the following line used under Java Program ? public static void main (String args[ ])

Answer: The following shows the explanation individually ?

public ? it is the access specifier.

static ? it allows main() to be called without instantiating a particular instance of a class.

void ? it affirns the compiler that no value is returned by main().

main() ? this method is called at the beginning of a Java program.

String args[ ] ? args parameter is an instance array of class String.

# Tutorial: Benefits of OOP
Question: Fundamentals of Object-Oriented Programming Short

118. Define JRE i.e. Java Runtime Environment?

Answer:
Java Runtime Environment is an implementation of the Java Virtual Machine which executes Java programs. It provides the minimum requirements for executing a Java application;

Java Runtime Environment (JRE) is a software platform that provides the necessary environment for running Java applications. It includes the Java Virtual Machine (JVM), libraries, and Java class files. JRE provides the resources and environment necessary for running Java programs, including memory management, security, and thread management. The JRE is responsible for executing compiled Java code and providing a secure and efficient runtime environment for Java applications.

# Tutorial: Benefits of OOP
Question: Overview of Java Language Short

119. What is JAR file?

Answer: JAR files is Java Archive fles and it aggregates many files into one. It holds Java classes in a library. JAR files are built on ZIP file format and have .jar file extension.

# Tutorial: Benefits of OOP
Question: Overview of Java Language Short

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What is an applet?

Answer:

Join Our telegram group to ask Questions

109. An applet extend which class?

110. Explain garbage collection in Java?

111. Define immutable object?

113. Explain Set Interface?

114. Explain TreeSet?

115. What is Comparable Interface?

116. Difference between throw and throws?

117. Explain the following line used under Java Program ? public static void main (String args[ ])

118. Define JRE i.e. Java Runtime Environment?

119. What is JAR file?