Noise pollution is a significant environmental issue, particularly in industrial settings. The constant hum of machinery, the clanging of metal, and the roar of engines contribute to a cacophony that can have serious health implications for workers and nearby residents. Addressing noise pollution in industries is not only a matter of regulatory compliance but also a crucial step in ensuring the well-being of employees and the community. Understanding Noise Pollution in Industries Industrial noise pollution stems from various sources such as heavy machinery, generators, compressors, and transportation vehicles. Prolonged exposure to high levels of noise can lead to hearing loss, stress, sleep disturbances, and cardiovascular problems. Beyond health impacts, noise pollution can also reduce productivity, increase error rates, and contribute to workplace accidents. Regulatory Framework Many countries have established regulations and standards to limit industrial noise. Organizations like t
1) What do you mean by platform independent in java?
Platform independence means that you can run the same java program in any Operating system. For example, you can write java program in window and run it in Mac OS.
2) What is JVM and is it platform independent ?
Java virtual machine (JVM) is the heart of java programming language. JVM is responsible for converting byte code into machine readable code. JVM is not platform independent, that's why you have different JVM for different operating system. We can customize JVM with java options, such as minimum and maximum memory to JVM. It is called virtual because it provides an interface that doesn't depend on the underlying OS.
3) Java compiler is stored in JDK, JRE or JVM ?
The task of java compiler is to convert java program into byte code, we have javac executeable for that. So it must be stored in JDK, we don't need it in JRE and JVM is just the specs.
4) Which class is the superclass of all the classes?
java.lang.Object is the root class for all the java classes and we don't need to extend it.
5) Why java is not Object Oriented Programming language?
Java is not a pure OOP language due to two reasons:
The first reason is that the object oriented programming language should only have objects whereas java contains 8 primitives data types like char, boolean, byte, short, int, long, float, double which are not objects. These primitive data types can be used without the use of any object.
The second reason related to the static keyword. In pure object oriented language, we should access everything by message passing(through objects). But java contains static variables and methods which can be accessed directly without using objects. That means, when we declare a class as 'static' then it can be referenced without the use of an object.