In java please. Thanks

Extra Credit: 3: Create a BankAccount class with one integer instance variable called balance. Create a constructor with no initial parameters. Create three methods: one for deposit, one for withdrawal, one for get balance 25: Write a program that creates an integer array data and then uses a for loop to create a new String that displays the contents of the data array surrounded by braces and separated by commas. For example, if the data array is of length 4 and contains the values 3, 4, 1, 5, then the String (3, 4,1,5 should be created and printed 26: Write a program that creates two integer arrays data1 and data2, possibly of different lengths Then it uses for loops to create a new array data3 whose length is the sum of the lengths of data1 and data2 and whose contents consist of the contents of data1 followed by the contents of data2. For example, if the two arrays are (1,2,3) and (4,5,6,7), then the code should create the new array 11,2,3,4,5,6,7 27: Write a program that creates an integer array and then uses a for loop to check whether the array is sorted from smallest to largest. If so, it prints "Sorted". Otherwise, it prints "Not sorted