An array in Java is a type of variable that can store multiple values. It stores these values based on a key that can be used to subsequently look up that information. Arrays can be useful for ...

Java’s String class encapsulates an array of bytes. A byte can be converted to a char, in which case, String becomes an array of characters used to compose words, sentences, or any other data you want ...

- 用Quick Sort 里面partion的一部分: sort结束后是ascending的. use a min-heap with size k, so min item will always be at top to be removed O(logk) ...

The Jagged Java program allows the user to input and display exam scores using a jagged array. It provides options to add scores, display all scores, or quit the program. Features Get Choice Method: ...