Why string is immutable in java?
The key benefits of keeping strings as immutable are caching, security, synchronization, and performance. The String is the most widely used data structure. Caching the String literals and reusing them saves a lot of heap space because different String variables refer to the same object in the String pool. It is also more secure, since they wont be modified.
How do I generate a list with <N> unique elements randomly selected from another (already existing) list?
Given three integer matrices A(m*n),B(m*n) and C(m*n) . Print the one with more zero elements. beside code
I'm coding this for hours & can't make the value of the 5 random numbers round off to 2 decimal places like in the examples
Overloading + operator
1. Write a program that asks the user for their name and how many times to print it. The program should print out the user’s nam