Tutorial Playlist
191 Lessons1. Introduction to Java
2. What is Java?
3. History of Java
4. Java Tutorial for Beginners
5. How Do Java Programs Work?
6. JDK in Java
7. C++ Vs Java
8. Java vs. Python
9. Java vs. JavaScript
10. From Java Source Code to Executable
11. How to Install Java in Linux
12. How to Install Java in Windows 10
13. Java Hello World Program
14. Structure of Java Program and Java Syntax
15. Operators in Java
16. Java If-else
17. Switch Case In Java
18. Loops in Java
19. Infinite loop in Java
20. For Loop in Java
21. For Each Loop in Java
22. Constructor in Java
23. Constructor Overloading in Java
24. Copy Constructor in Java
25. Default Constructor in Java
26. Parameterized Constructors in Java
27. Constructor Chaining In Java
28. Finalize Method in Java
29. Static Method in Java
30. Equals Method in Java
31. Abstract Method in Java
32. toString() Method in Java
33. Difference between equals method in Java
34. Inheritance in Java
35. Multiple Inheritance in Java
36. Hierarchical Inheritance in Java
37. Java Classes and Objects
38. Scanner Class in java
39. All classes in java are inherited from which class
40. What is Nested Class in Java
41. POJO Class in Java
42. Anonymous Class in Java
43. Final Class in Java
44. Object Class in Java
45. Packages in Java
46. Access Modifiers in Java
47. Static Keyword In Java
48. Final Keyword in Java
49. Checked and Unchecked Exceptions in Java
50. User Defined Exception in Java
51. Error vs. Exception in Java
52. Java Collection
53. Collections in Java
54. Garbage Collection in Java
55. Generics In Java
56. Java Interfaces
57. Functional Interface in Java
58. Marker Interface in Java
59. Streams in Java
60. Byte stream in java
61. File Handling in Java
62. Thread in Java
63. Thread Lifecycle In Java
64. Daemon Thread in Java
65. Thread Priority in Java
66. Deadlock in Java
67. String Pool in Java
68. Java Database Connectivity(JDBC)
69. Design Patterns in Java
70. Functional Programming in Java
71. OOP vs Functional vs Procedural
72. Heap Memory and Stack Memory in Java
73. Applet in Java
74. Java Swing
75. Java Frameworks
76. Hibernate Framework
77. JUnit Testing
78. How to Install Eclipse IDE for Java?
79. Command line arguments in Java
80. Jar file in Java
81. Java Clean Code
82. OOPs Concepts in Java
83. Java OOPs Concepts
84. Overloading vs Overriding in Java
85. Java 8 features
86. String in Java
87. String to int in Java
88. Why String Is Immutable in Java?
89. Primitive Data Types in Java
90. Non-Primitive Data Types in Java
91. This and Super Keyword in Java
92. HashMap in Java
93. Comparable And Comparator in Java
94. Type Casting in Java
95. Arrays Sort in Java with Examples
96. Variable Hiding and Variable Shadowing in Java
97. Enum in Java
98. Substring in Java
99. Pattern Programs in Java
100. Hashcode in Java
101. What is ByteCode in Java?
102. How To Take Input From User in Java
103. GCD of Two Numbers in Java
104. Linked List in Java
105. Arithmetic Operators in Java
106. Conditional Operators in Java
107. Stack and Queue in Java
108. Array Length in Java
109. Number Pattern Program in Java
110. Split in java
111. Map In Java
112. Difference Between Throw and Throws in Java
113. Difference Between Data Hiding and Abstraction
114. HashSet in Java
115. String Length in Java
116. Factorial Using Recursion in Java
117. DateFormat in Java
118. StringBuilder Class in java
119. Instance variables in Java
120. Java List Size
121. Java APIs
122. Reverse an Array in Java
123. StringBuffer and StringBuilder Difference in Java
124. Java Program to Add Two Numbers
125. String to Array in Java
126. Regular Expressions in Java
127. Identifiers in Java
128. Data Structures in Java
129. Set in Java
130. Pass By Value and Call By Reference in Java
131. Try Catch in Java
132. Bubble Sort in Java
133. Caesar Cipher Program in Java
134. Queue in Java
135. Object Creation in Java
136. Multidimensional Array in Java
137. How to Read a File in Java
138. String Comparison in Java
139. Volatile Keyword in Java
140. Control Statements in Java
141. Jagged Array in Java
142. Two-Dimensional Array in Java
143. Java String Format
144. Replace in Java
145. charAt() in Java
146. CompareTo in Java
147. Matrix Multiplication in Java
148. Static Variable in Java
149. Event Handling in Java
150. parseInt in Java
151. Java ArrayList forEach
152. Abstraction in Java
153. String Input in Java
154. Logical Operators in Java
155. instanceof in Java
156. Math Floor in Java
Now Reading
157. Selection Sort Java
158. int to char in Java
159. Stringtokenizer in java
160. Implementing and Manipulating Abs in Java
161. Char array to string in java
162. Convert Double To String In Java
163. Deque in Java
164. Converting a List to an Array in Java
165. The Max function in java
166. Removing whitespace from string in java
167. String arrays in Java
168. Strings in Java Vs Strings in Cpp
169. Sum of digits of a number in Java
170. Art of Graphical User Interfaces
171. Trim in Java
172. RxJava
173. Recursion in Java
174. HashSet Java
175. Difference Between Java and Python
176. Square Root in Java
177. Reverse A String in Java
178. Even Odd Program in Java
179. Fibonacci Series in Java
180. Prime Number Program in Java
181. Java Program to Print Prime Numbers in a Given Range
182. Java Leap Year Program
183. Swapping of Two Numbers in Java
184. LCM of Two Numbers in Java
185. Math.sqrt() Function in Java
186. Area of Triangle in Java
187. Sort a String In Java
188. Factorial Program in Java
189. Javafx
190. Lambda expression in java
191. Setup Java Home and IDE on macOS
In Java, there are several functions to work on mathematical calculations. These are predefined functions that accept value and return results. One such handy mathematical function is the Math Floor Java which allows you to round a given decimal number to its nearest whole number or integer, similar to the Math.ceil Java method. However, unlike Math.ceil(), the floor function provides the largest integer that’s lesser than or equal to the given value.
The Math.floor() method is quite simple. Here, one needs to just give a desired decimal number as an input to the method, and the function will simply round it down to its nearest integer value. It can be applied to each element of an array.
Math Floor can be applied wherever one needs precise control over numerical operations, such as financial calculations and scientific research.
Math.floor() is a useful tool for solving various mathematical operations, especially when discarding a fractional part of a decimal value and working with whole numbers only. It is also noteworthy how this function works with negative numbers to ensure consistent rounding behaviors.
The floor() method in the Math class in Java is a built-in mathematical function for rounding up a decimal or floating-point number down to the nearest integer or whole number.
Here is the syntax of the Math.floor() method in Java:
public static double floor(double d)
Let us break down the syntax:
The Math.floor() method in Java returns a value of type double, the largest integer that is less than or equal to the specified value. The returned value is computed by rounding the specified value towards negative infinity.
For example, if we have a value d of 3.8, the floor() method will return 3.0 because 3 is the largest integer less than or equal to 3.8. Similarly, if we have a value d of -2.5, the method will return -3.0 because -3 is the largest integer less than or equal to -2.5.
double value = 3.8;
double result = Math.floor(value);
System.out.println(result); // Output: 3.0
The floor() method in Java does not throw any exceptions. It is a well-defined method in the Math class and is designed to handle the rounding down operation without any exceptional scenarios.
Therefore, when you use the floor() method, you don't need to handle any specific exceptions in your code. It will always return a result without throwing any exceptions.
However, it's important to note that if you pass NaN (Not-a-Number) or positive infinity as the argument to the floor() method, the result will be NaN or positive infinity, respectively. These are not exceptions but specific cases defined by the IEEE 754 floating-point standard.
public class upGradTutorials {
public static void main(String[] args) {
double num = 7.8;
double result = Math.floor(num);
System.out.println("Original number: " + num);
System.out.println("Floored number: " + result);
}
}
In the above example, we have a variable num initialized with the value 7.8. We use the Math.floor() method to round down the value of num to the nearest integer or whole number that is less than or equal to it. The result is stored in the variable result.
Finally, we print both the original and floored numbers to the console using System.out.println().
import java.util.Arrays;
public class upGradTutorials {
public static void main(String[] args) {
// Define an array of decimal numbers
double[] numbers = {2.5, 6.7, 4.1, 9.8, 3.3};
// Print the original array
System.out.println("Original array: " + Arrays.toString(numbers));
// Iterate through each element of the array and round it down using Math.floor()
for (int i = 0; i < numbers.length; i++) {
numbers[i] = Math.floor(numbers[i]);
}
// Print the modified array with floored values
System.out.println("Floored array: " + Arrays.toString(numbers));
}
}
In the above program, we have an array called numbers that contains decimal values. We want to round down each value in the array to the nearest integer or whole number.
First, we print the original array using the Arrays.toString() method. Then, we use a loop to iterate through each array element. Within the loop, we apply the Math.floor() method to round down each value to the nearest integer. The modified value is then returned to the same index in the array.
Finally, we print the modified array using the Arrays.toString() method to display the floored values.
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class upGradTutorials {
public static void main(String[] args) {
// Create an ArrayList of decimal numbers
List<Double> numbers = new ArrayList<>(Arrays.asList(3.5, 9.1, 6.2, 4.7));
// Print the original ArrayList
System.out.println("Original ArrayList: " + numbers);
// Iterate through each element of the ArrayList and round it down using Math.floor()
for (int i = 0; i < numbers.size(); i++) {
double roundedDown = Math.floor(numbers.get(i));
numbers.set(i, roundedDown);
}
// Print the modified ArrayList with floored values
System.out.println("Floored ArrayList: " + numbers);
}
}
In this example, we create an ArrayList called numbers containing decimal values using the Arrays.asList() method. We want to round down each value in the ArrayList to the nearest integer.
First, we print the original ArrayList using the System.out.println() statement.
Then, we iterate through each element of the ArrayList using a loop. Within the loop, we use the Math.floor() method to round down each value to the nearest integer. The rounded-down value is then returned to the ArrayList using the set() method.
Finally, we print the modified ArrayList containing the floored values using the System.out.println() statement.
public class upGradTutorials {
public static void main(String[] args) {
double num = 7.8;
double floored = Math.floor(num);
System.out.println("Original number: " + num);
System.out.println("Floored number: " + floored);
}
}
In this example, we have a variable num initialized with the value 7.8. The Math.floor() method is used to round down the value of num to the nearest integer or whole number that is less than or equal to it. The rounded-down value is stored in the variable floored.
Finally, we print both the original and floored numbers to the console.
public class upGradTutorials {
public static void main(String[] args) {
double num = -5.3;
double floored = Math.floor(num);
System.out.println("Original number: " + num);
System.out.println("Floored number: " + floored);
}
}
First, we declare a variable num and assign it the value -5.3, representing a negative decimal number. Next, we call the Math.floor() method and pass num as the argument. This method returns the largest integer value that is less than or equal to the given number.
The result of the Math.floor() method is stored in the variable floored. Finally, we use System.out.println() statements to display the original number (num) and the floored number (floored) on the console.
From what we learned from this tutorial, it is clear how the Math.floor() function can perform precise calculations in a code. Thus, making it a must-learn function for all the programmers out there.
There are many other uses for the Math.floor(), such as its application in converting the Java floor double to int just by casting the result. This simplicity in its application, coupled with the accurate results it delivers, makes this function an essential part of a programmer's toolkit.
Thus, with the understanding of Math.floor() one can draw out the most precise and accurate calculations while solving the difficult programming challenges.
Math floor in Java is a mathematical function in the programming language that rounds down a given decimal number to the nearest integer. To be precise, it returns the largest integer less than or equal to the given number while discarding the decimal part.
As we know, the Math.floor() function rounds the given number to its nearest integer, which will be less than or equal to the number. Therefore, in this case, the result of the Math.floor(-4.7) is -5 .
To apply the floor function in Java, one can simply use the Math.floor() method. One must pass their desired decimal number as an argument to the function to apply it. In return, it will give out the result by rounding it down to the largest integer that is less than or equal to the given number.
Math.floor is a JavaScript function that rounds a number down to the nearest integer, returning the largest integer less than or equal to the given number.
PAVAN VADAPALLI
Director of Engineering
Director of Engineering @ upGrad. Motivated to leverage technology to solve problems. Seasoned leader for startups and fast moving orgs. Working …Read More
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upGrad does not grant credit; credits are granted, accepted or transferred at the sole discretion of the relevant educational institution offering the diploma or degree. We advise you to enquire further regarding the suitability of this program for your academic, professional requirements and job prospects before enr...