Is it necessary to import Java Lang package any time?

Importing java lang package is not necessary.java lang is already imported! Theoretically, any time you write a java program, it may not be necessary to import the java lang.package. However, in most cases, you will find that code is more readable and understandable if you import java lang.package. You shouldn't import java lang package in any time;

import java math

on Jan 01, 1970

import java.lang.Math.*;

// usage
double radius = 15;
double area = Math.PI * radius * radius;

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import java.lang.Math.*;

on Jan 01, 1970

import static java.lang.Math.sqrt;
public class Demo {
   public static void main(String[] arg) {
      double num = 3.0;
      System.out.println("The number is: " + num);
      System.out.println("The square root of the above number is: " + sqrt(num));
   }
}

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It is a protocol function and it has nothing to do with any android library. This is another good reason to use SVN.

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Is it necessary to import Java Lang package any time?

import java math

import java.lang.Math.*;

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Java queries related to "Import java math"

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