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
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
Now Reading
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
Java has become a renowned language in programming due to its long-term presence in the market, which makes it more popular than Python, a rising programming language that is gradually gaining mass value. However, the two languages have several key differences, like Java being statically typed and compiled while Python uses dynamic typing and interpretations.
Dive in to learn more about the difference between Java and Python.
Python is an interpreted high-end programming language developed by Guido Van Rossum in 1991. It features an object-oriented nature in programming with extensive library support, which helps simplify the algorithms and program implementations.
The enormous collection of libraries in Python is considerably its biggest strength, and using it can be advantageous in various ways, such as:
Java was developed by James Gosling in 1995 at Sun Microsystems, it is a high-level programming language that works with object-oriented operations. The syntax in Java involves similarities with the C and C++ syntax. Nonetheless, it has a lower difficulty level than the C++ or C language.
Java is based on WORA or Write Once Run Anywhere, which makes it independent of platforms. A compiled Java code can run on several platforms without undergoing a recompilation. Most programmers opt for Java to code different web applications, such as:
Java and Python are very different programming languages, and they each have their own rules and syntax. Let us learn in more detail.
Every Java program starts with a class definition. The class should have the same name as the file containing the code. The public static void main(String[] args) method serves as the program's entry point.
Java code is organized into classes, methods, and blocks. Methods define the behavior of the program. Statements are written inside methods and end with a semicolon (;).
Java is a statically typed language, so variables need to be declared with their data types before use. Variable names follow the camel case convention (e.g., myVariable). Java provides various primitive data types (e.g., int, double, boolean) and reference types (e.g., String, ArrayList).
Java supports control flow structures like conditional statements (if, else, switch), loops (for, while), and branching (break, continue).
Here is an example program in Java that prints “upGrad teaches Java programming.”:
To run this program, you must compile it using a Java compiler (e.g., javac) and then run it using the Java Virtual Machine (JVM) by executing the bytecode with the Java command. You can also use an online compiler.
Code:
public class upGradTutorials {
public static void main(String[] args) {
System.out.println("upGrad teaches Java programming.");
}
}
The code starts with a class definition: public class upGradTutorials. The keyword public indicates that the class can be accessed from anywhere. The class is named upGradTutorials, following the camel case naming convention.
Here are the two essential components of the program:
The keyword static means that the method belongs to the class itself, not to an instance of the class. The return type void specifies that the method does not return any value. The method name is main. It takes a single parameter, String[] args, representing the command-line arguments passed to the program.
Python programs are organized using indentation (whitespace). Indentation levels define blocks of code. There is no need for braces or explicit block termination.
Python is a dynamically-typed language, so variables don't require explicit type declarations. Variable names follow lowercase conventions with underscores (e.g., my_variable). Python provides various built-in data types (e.g., int, float, bool, str, list, dict).
Python supports control flow structures like conditional statements (if, elif, else), loops (for, while), and branching (break, continue).
Python provides a rich set of built-in functions (e.g., print(), input(), and libraries (e.g., math, random, datetime) for various tasks.
Here is an example program in Python that prints “upGrad teaches Python programming.”:
Python programs are interpreted and executed directly. To run a Python program, you can use the Python command followed by the file name. Alternatively, you can run the script directly by making it executable and adding the appropriate shebang line (#!/usr/bin/env python or #!/usr/bin/python). You can also use an integrated development environment (IDE).
Code:
num1 = int(input("Enter the first number: "))
num2 = int(input("Enter the second number: "))
sum = num1 + num2
print("The sum is:", sum)
In the above code, the Python program that prints the statement "upGrad teaches Python programming" to the console. The print() function is called with the string argument.
Here are the two essential components of the program:
Code:
import java.util.Scanner;
public class upGradTutorials {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter the first number: ");
int num1 = scanner.nextInt();
System.out.print("Enter the second number: ");
int num2 = scanner.nextInt();
int sum = num1 + num2;
System.out.println("The sum is: " + sum);
scanner.close();
}
}
The code begins with an import statement: import java.util.Scanner;. It imports the Scanner class from the java.util package, which allows us to read user input from the console.
Inside the main method, a Scanner object is created using the line: Scanner scanner = new Scanner(System.in);. The Scanner object is associated with the standard input stream (System.in), representing the console input.
The program prompts the user to enter the first number using the statement: System.out.print("Enter the first number: ");. The user's input is obtained using the nextInt() method of the Scanner class, which reads an integer value. The entered value is assigned to the variable num1. Similarly, the user is prompted to enter the second number, and the value is assigned to the variable num2.
The line int sum = num1 + num2; calculates the sum of the two numbers entered by the user. The variables num1 and num2 contain the integer values obtained from user input. The sum of these two numbers is assigned to the variable sum.
Python Program for Calculating the Sum of Two Numbers
Code:
num1 = int(input("Enter the first number: "))
num2 = int(input("Enter the second number: "))
sum = num1 + num2
print("The sum is:", sum)
The input() function is used to take user input from the console. It displays the specified prompt as a message to the user and waits for input.
The int() function converts a value into an integer. In this code, int() converts the string input obtained from input() into integer values. The int() function ensures that the user's input is treated as an integer. The converted integer value is then assigned to the variable num1.
Similarly, the second line prompts the user to enter and assign the second number to the variable num2. The line sum = num1 + num2 calculates the sum of the two numbers entered by the user. The variables num1 and num2 contain the integer values obtained from user input. The sum of these two numbers is assigned to the variable sum.
Besides the visible difference between Java and Python syntax, several other dissimilarity aspects help build a clear distinction, such as:
Parameters | Python | Java |
Codes | Python usually requires fewer code lines. | Java generally uses longer lines of coded operations. |
Framework | Python has a comparatively lower count in frameworks, the renowned ones being Django and Flask. | Java includes a larger number of frameworks, like Spring and Hibernate. |
Machine Learning Libraries | Pytorch and Tensorflow | Weka, Deeplearning4j, Mallet, and MOA. |
Database | The access layers of databases in Python are typically weaker than JDBC in Java. | Java's Database Connectivity, or JDBC, is the most popular option for creating database connections. |
Practical Agility | The evolution of the DevOps movement has helped grow Python's popularity, although Python has always been a part of the agile space. | The static type system in Java adds predictability and reliability to automated refactoring, and the predominance of IDEs in Java's developmental operations enhances the consistency of refactoring in Java, making it more efficient than Python. |
Both Java and Python are highly effective and have their own pros and cons. To conclude with the comparison between these two languages, it can be established that the choice depends on the programmer and the project. While Python is succinct and simple, Java is more portable and quicker. You can analyze the difference between Java and Python and choose accordingly.
This tutorial distinguishes between Java and Python based on the key features that add individuality to the languages and compares their effectiveness through numerous parameters. If you are interested in learning more about Java and other programming languages, courses from upGrad can help you understand the concepts in detail and improve your overall expertise in programming.
1. Can Python do everything Java can?
As an interpreted language, Python has dynamic typing, while Java is a compiled, statically typed language. Java provides a faster runtime because of this aspect. Java is also easier to debug than Python, which is quickly understandable. A prevalent concept in programming is based on Python being unable to overtake Java.
2. What is Python primarily used for?
Python is a language usually used in developing websites, task automation, data visualization, data analysis, and software development. It is comparatively easier to learn. Hence, several non-programmers like scientists, accountants, and others use Python to work on everyday tasks like data entry and organizing finances.
3. Which software is used for Java?
Software programs used for Java operations are object-oriented and deal with code and graphics. Choosing the correct tool is necessary. Experienced programmers use software like NetBeans IDE and JavaFX. NetBeans is a full-featured Oracle software program used in Java development, and JavaFX is a consumer platform that creates and connects branded online applications.
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 enrolling. upGrad does not make any representations regarding the recognition or equivalence of the credits or credentials awarded, unless otherwise expressly stated. Success depends on individual qualifications, experience, and efforts in seeking employment.
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...