What is a static variable?

Java Programming Language > Variables in java > Application of OOP

Short Question

797

Answer:

Class variables also known as static variables are declared with the static keyword in a class, but outside a method, constructor or a block.

Go to Question List

This Particular section is dedicated to Question & Answer only. If you want learn more about Java Programming Language. Then you can visit below links to get more depth on this subject.

Java Syllabus

Java Tutorial

Java Chapterwise Programs

Java Chapterwise MCQs

Java Chapterwise Q & A

# C Tutorials # JAVA Tutorials # HTML Tutorials # Computer Fundamental # Data Structure # DBMS Tutorials SQL # C# Language # R Language # PHP # Python # Vue JS

Join Our telegram group to ask Questions

Click below button to join our groups.

Ask Question - CSE

Programming Language - PDF

Related Program List

74. What do you mean by Access Modifier?

Answer: Java provides access modifiers to set access levels for classes, variables, methods and constructors. A member has package or default accessibility when no accessibility modifier is specified.

# Tutorial: Application of OOP

Question: DataTypes in java Short

75. What is protected access modifier?

Answer: Variables, methods and constructors which are declared protected in a superclass can be accessed only by the subclasses in other package or any class within the package of the protected members' class.

# Tutorial: Application of OOP

Question: DataTypes in java Short

76. What do you mean by synchronized Non Access Modifier?

Answer: Java provides these modifiers for providing functionalities other than Access Modifiers, synchronized used to indicate that a method can be accessed by only one thread at a time.

# Tutorial: About Java Tutorial

Question: DataTypes in java Short

77. According to Java Operator precedence, which operator is considered to be with highest precedence?

Answer:

Postfix operators i.e () [] . is at the highest precedence.

# Tutorial: About Java Tutorial

Question: Operators in java Short

78. Variables used in a switch statement can be used with which datatypes?

Answer: Variables used in a switch statement can only be a string, enum, byte, short, int, or char.

# Tutorial: Object-Oriented Paradigm

Question: Fundamentals of Object-Oriented Programming Short

79. When parseInt() method can be used?

Answer: This method is used to get the primitive data type of a certain String.

# Tutorial: Object-Oriented Paradigm

Question: Fundamentals of Object-Oriented Programming Short

80. Why is String class considered immutable?

Answer: The String class is immutable, so that once it is created a String object cannot be changed. Since String is immutable it can safely be shared between many threads ,which is considered very important for multithreaded programming.

# Tutorial: Object-Oriented Paradigm

Question: Fundamentals of Object-Oriented Programming Short

81. Why is StringBuffer called mutable?

Answer: The String class is considered as immutable, so that once it is created a String object cannot be changed. If there is a necessity to make alot of modifications to Strings of characters then StringBuffer should be used.

# Tutorial: Object-Oriented Paradigm

Question: Fundamentals of Object-Oriented Programming Short

82. What is the difference between StringBuffer and StringBuilder class?

Answer: Use StringBuilder whenever possible because it is faster than StringBuffer. But, if thread safety is necessary then use StringBuffer objects.

# Tutorial: Object-Oriented Paradigm

Question: Fundamentals of Object-Oriented Programming Short

83. Which package is used for pattern matching with regular expressions?

Answer: java.util.regex package is used for this purpose.

# Tutorial: Object-Oriented Paradigm

Question: Fundamentals of Object-Oriented Programming Short

Chapterwise Java Program
Chapterwise C Program
Chapterwise Data Structure Program