The following code has some error(s). Identify the errors and write the corrected code.

Int x = 4, y = 8;
{
    y = y + (x++)
} while (x <= 10) 
System.out.println(y);

State the method that determines, if the specified character is an uppercase character.

Define a class to declare an array of size 20 of double datatype, accept the elements into the array and perform the following:

Calculate and print the sum of all the elements.

Calculate and print the highest value of the array.

Write a program to print following patterns.

(i)

1 2 3 4 5
1 2 3 4
1 2 3
1 2 
1

(ii)

A
B A
C B A
D C B A
E D C B A