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
Define class in Java
In java, a class is a template used to create object and define the data type. It acts as a building block for java language oriented systems. All java codes are defined in a class. A class has variables and methods.
Variables are attributes which define the state of class.
Methods are the place where the exact business logic has to be done. It contains a set of statements or instructions to satisfy the particular requirement.
Eg:
public class Addition // class name declaration
{
int a= 5; // variable declaration
int b= 5;
public void add()
{ // Method declaration
int c=a+b;
}
}
What do you mean by object ?
Object is a basic unit of Object oriented programming and represents the real life entities. A typical java program creates many objects, which interact each other by invoking methods. A java object is a combination of data and procedures working on the available data. An object has a state and behavior. The state of an object is stored in fields(variables),while methods (functions) displays the object behavior. Objects are created from templates known as classes. In java an object is created by using the keyword 'new'.
What is immutable object ?
Immutable object are java object whose object cannot be modified once created. Any modification in immutable object result in new object. For example String is immutable in java. Mostly immutable are also final in java, inorder to prevent sub class from over ridding methods in java which can compromise immutability. You can achieve same functionality by making members as non final but private and not modifying them except in constructor.