Frequent question: Why Strictfp is used in Java?

Why do we use strictfp?

‘strictfp’ keyword is used to force the precision of floating point calculations (float or double) in Java conform to IEEE’s 754 standard, explicitly. If you do not use strictfp keyword, the floating point precision depends on target platform’s hardware.

What is the use of strictfp in Java?

strictfp is a modifier in the Java programming language that restricts floating-point calculations to ensure portability. The strictfp command was introduced into Java with the Java virtual machine (JVM) version 1.2 and is available for use on all currently updated Java VMs.

Why strictfp Cannot be used with abstract methods?

It would make no sense to make an abstract method strictfp because an abstract method just provides a method signature (and throws clause if any), to use it we need to override it in a subclass with a concrete method and this method will have its own modifiers which will override its parent method’s modifiers.

Is strictfp a reserved keyword in Java?

List of Reserved Java Keywords. *The strictfp keyword was added to this list in Java Standard Edition version 1.2, assert in version 1.4, and enum in version 5.0.

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What is super () in Java?

The super keyword in Java is a reference variable which is used to refer immediate parent class object. Whenever you create the instance of subclass, an instance of parent class is created implicitly which is referred by super reference variable. … super() can be used to invoke immediate parent class constructor.

Is Main a keyword in Java?

main: It is the name of Java main method. It is the identifier that the JVM looks for as the starting point of the java program. It’s not a keyword.

What is void in Java?

void is a Java keyword. Used at method declaration and definition to specify that the method does not return any type, the method returns void .

What is assert keyword in Java?

assert is a Java keyword used to define an assert statement. An assert statement is used to declare an expected boolean condition in a program. If the program is running with assertions enabled, then the condition is checked at runtime. If the condition is false, the Java runtime system throws an AssertionError .

What is const in Java?

Constants are basically variables whose value can’t change. In C/C++, the keyword const is used to declare these constant variables. In Java, you use the keyword final . However, the tool introduced here is not simply a primitive variable; it’s an actual object instance.

Can we override strictfp method in Java?

strictfp keyword cannot be used with abstract classes and method. Please nore that strictfp behavior is not inherited by a subclass that extends a strictfp superclass. An overriding method can independently choose to be strictfp while the overridden method is not, or vice versa.

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What is use of final keyword in Java?

Java final keyword is a non-access specifier that is used to restrict a class, variable, and method. If we initialize a variable with the final keyword, then we cannot modify its value. If we declare a method as final, then it cannot be overridden by any subclasses.

What is synchronized modifier in Java?

The synchronized keyword used to indicate that a method can be accessed by only one thread at a time. The synchronized modifier can be applied with any of the four access level modifiers.

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