✅ Programming in JAVA

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📜Practical Questions

Q1)   Write a JAVA program to find the sum of any number of integers entered as command line arguments.

• Approach-1 using Java✅

• Approach-2 using Java✅

Q2)   Write a JAVA program to find the Factorial of a given number:

(i) Using Iteration

• Iterative approach using Java✅

(ii) Using Recursion

• Recursive approach using Java✅

Q3)   Write a JAVA program to display Fibanocci Series:

(i) Using Iteration

• Iterative approach using Java✅

(ii) Using Recursion

• Recursive approach using Java✅

Q4)   Write a JAVA program to convert a given Decimal number to its equivalent Binary number.

• See Solution using Java✅

Q5)   Write a JAVA program to convert a given Binary number/string to its equivalent Decimal number.

• Approach-1 using Java✅

• Approach-2 using Java✅

• Also read my full article on GeeksForGeeks.com➡️

Q6)   Write a JAVA program to convert a given Binary number to its equivalent Hexadecimal value.

• See Solution using Java✅

Q7)   Write a JAVA program to check whether the given number is prime or not.

• See Solution using Java✅

Q8)   Write a JAVA program to find the position of a number in a given Array.

• See Solution using Java✅

Q9)   Write a JAVA program to sort a given Array in Ascending Order and Descending Order.

• Ascending Order (Java)✅

• Descending Order (Java)✅

Q10)   Write a JAVA program to search a number in a given List (Using ArrayList from Collection Framework).

• See Solution using Java✅

Q11)   Write a JAVA program to sort a given List of numbers in Ascending Order and Descending Order (Using ArrayList from Collection Framework).

• Ascending Order (Java)✅

• Descending Order (Java)✅

Q12)   Write a JAVA program to show working of different methods of String class:

• PART-1

trim(); 
length();  
concat();  
charAt();  
equals();  
indexOf();  
valueOf();
endsWith();  
contains();  
toUpperCase(); 
lastIndexOf();

• Part-1: Solution using Java✅

• PART-2

replace(); 
substring();  
startsWith();  
toLowerCase();  
equalsIgnoreCase(); 

• Part-2: Solution using Java✅

Q13)   Write a JAVA program to show working of different methods of StringBuffer class:

append();   
insert();
delete();
replace();
reverse();  
capacity();

• See Solution using Java✅

Q14)   Write a JAVA program to create a class Distance which consists of two coordinates as data members and a constructor which initializes the values of coordinates and a method which calculates the distance between two coordinates.

• See Solution using Java✅

Q15)   Write a JAVA program to implement the concept of Method Overloading (Compile Time Polymorphism).

• See Solution using Java✅

Q16)   Write a JAVA program to implement the concept of Method Overriding (Run Time Polymorphism).

• See Solution using Java✅

Q17)   Write a JAVA program to show the uses of static data members and static methods.

• See Solution using Java✅

Q18)   Write a JAVA program to demonstrate the concept of boxing and unboxing.

• See Solution using Java✅

Q19)   Write a JAVA program to implement the concept of Single-Level Inheritance.

• See Solution using Java✅

Q20)   Write a JAVA program to implement the concept of Multi-Level Inheritance.

• See Solution using Java✅

Q21)   Write a JAVA program to implement the concept of Hierarchical Inheritance.

• See Solution using Java✅

Q22)   Write a JAVA program to create your own package and use it in your program.

• Main(Custom Package used)✅

• Package: Search/sorted/✅

• Package: Search/unsorted/✅

Q23)   Write a JAVA program to implement the concept of Interface.

• See Solution using Java✅

Q24)   Write a JAVA program to implement the concept of Multiple Interfaces.

• See Solution using Java✅

Q25)   Write a JAVA program to implement the concept of exception handling mechanism.

• See Solution using Java✅

Q26)   Write a JAVA program to handle multiple exceptions.

• See Solution using Java✅

Q27)   Write a JAVA program to create your own exception and use it in the program.

• See Solution using Java✅

Q28)   Write a JAVA program to read the contents of a File.

• See Solution using Java✅

Q29)   Write a JAVA program to write the contents to a File.

• See Solution using Java✅

Q30)   Write a JAVA program to count the number of Characters, Words and Lines in a File.

• See Solution using Java✅

Q31)   Write a JAVA program to copy the contents of one File into another File.

• See Solution using Java✅

Q32)   Write a program design a Simple Calculator using JAVA SWING.

• GUI using Java Swing✅

• See GUI Output➡️

Q33)   Write a program to display the coordinates of mouse, when it clicked in the GUI Window using JAVA SWING.

• GUI using Java Swing✅

• See GUI Output➡️

Q34)   Write a JAVA program to implement the concept of multi-threading by extending Thread class.

• See Solution using Java✅

Q35)   Write a JAVA program to implement the concept of multi-threading by implementing the Runnable interface.

• See Solution using Java✅

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