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If you’re interviewing for a Java programming role, then your coding skills will probably be tested. Find 5 mistakes in the following code snippet. Show examples of overloading and overriding in Java. Show an example of using lambda expressions in Java. How do you create a functional interface? How do you write an interface with default and static method? How do you use the forEach() method in Java? How do you compile and run a Java class from the command line? Show an example of switch expressions and multi-label case statements in Java. Write a Java program to show a NullPointerException. How do you illustrate a try catch example in Java? How do you show a diamond problem with multiple inheritance in Java? Can you write some code to showcase inheritance in Java? Can you prove that a String object in Java is immutable programmatically? How do you get distinct characters and their count in a string in Java? How do you remove all occurrences of a given character from an input string in Java? Write a Java program that sorts HashMap by value. How do you print a date in specific format in Java? How can you find a string in a text file in Java? How do you find the second largest number in an array in Java? How do you get the sum of all elements in an integer array in Java? Write Java program that checks if two arrays contain the same elements. Can you create a pyramid of characters in Java? Write a Java program that illustrates merge sort. How do you implement a binary search in Java? How do you reverse a linked list in Java? How can you find the factorial of an integer in Java?

How do you create a deadlock scenario programmatically in Java? How do you remove leading and trailing spaces from a string in Java? How do you remove spaces from a string in Java? How do you check whether a string is a palindrome in Java? How do you check if a list of integers contains only odd numbers in Java? Write a Java program to print a Fibonacci sequence using recursion. Write a Java program to check if the given number is a prime number. Write a Java program to check if a vowel is present in a string. How do you swap two numbers without using a third variable in Java?