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Java: Accepts two floating­point numbers and checks whether they are the same up to two decimal places

Java Conditional Statement: Exercise-32 with Solution

Write a Java program that accepts two floating­point numbers and checks whether they are the same up to two decimal places.

Test Data
Input first floating­point number: 1235
Input second floating­point number: 2534

Pictorial Presentation:

Java conditional statement Exercises: Accepts two floating­point numbers and checks whether they are the same up to two decimal places

Sample Solution:

Java Code:

import java.util.Scanner;
public class Exercise32 {

public static void main(String[] args) { 
 Scanner input = new Scanner(System.in); 
 System.out.print("Input first floating­point number: "); 
 double num1 = input.nextDouble(); 
 System.out.print("Input second floating­point number: "); 
 double num2 = input.nextDouble(); 
 input.close(); 
  
 if (Math.abs(num1 - num2) <= 0.01) { 
     System.out.println("These numbers are the same."); 
 } 
 else { 
     System.out.println("These numbers are different."); 
 } 
    } 
}

Sample Output:

Input first floating­point number: 1235                                                                       
Input second floating­point number: 2534                                                                      
These numbers are different. 

Flowchart:

Flowchart: Java Conditional Statement Exercises - Accepts two floating­point numbers and checks whether they are the same up to two decimal places

Java Code Editor:

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Previous: Write a program that accepts three numbers from the user and prints "increasing" if the numbers are in increasing order, "decreasing" if the numbers are in decreasing order, and "Neither increasing or decreasing order" otherwise.
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Java: Tips of the Day

IsPowerOfTwo

Checks if a value is positive power of two.

To understand how it works let's assume we made a call IsPowerOfTwo(4).

As value is greater than 0, so right side of the && operator will be evaluated.

The result of (~value + 1) is equal to value itself. ~100 + 001 => 011 + 001 => 100. This is equal to value.

The result of (value & value) is value. 100 & 100 => 100.

This will value the expression to true as value is equal to value.

public static boolean isPowerOfTwo(final int value) {
    return value > 0 && ((value & (~value + 1)) == value);
}

Ref: https://bit.ly/3sA5d4I

 





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