Question: 1. Write a method that finds the second largest element in an array of integers 2. Write a method that deletes an element in an

1. Write a method that finds the second largest element in an array of integers

2. Write a method that deletes an element in an array, and shifts all elements after the deleted index down one position. The method takes in input the array, and the index of the element to be deleted.

3. Write a method that computes the sum of two 3x3 matrices.

In Java and please explain each one,

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