6. Write a program that reads in an integer andbreaks it into a sequence of individual digits. Forexample, the input 16384 is displayed as16384You may assume that the input has no morethan five digits and is not negative.7. Decimal to hex. Write a program that promptsthe user to enter an integer between 0 and 15and displays its corresponding hex number.Here are some sample runs (user input in color):Enter a decimal value (0 to 15): 11The hex value is BEnter a decimal value (0 to 15): 5The hex value is 58. Convert number grade to letter. Write aprogram that prompts the user to enter anumeric grade 4, 3, 2, 1, or 0 and displays itscorresponding letter value A, B, C, D, or F.Here is a sample run (user input in color):Enter a numeric grade: 3The letter value for grade 3 is B 1. Write a program that reads a number between1,000 and 999,999 from the user, where theuser enters a comma in the input. Then printthe number without a comma. Here is a sampledialog; the user input is in color:Please enter an integer between 1,000and 999,999: 23,45623456Hint: Read the input as a string. Measure thelength of the string. Suppose it contains ncharacters. Then extract substrings consisting ofthe first n - 4 characters and the last threecharacters.2. Writing large letters. A large letter H can beproduced like this:*It can be declared as a string literal like this:final string LETTER_H = "* *%n**n*****n* *n* *%n";Print the string with System.out.printf. Theen format specifiers cause line breaks in theoutput. Do the same for the letters E, L, and O.Then write in large letters:O3. Write a program that transforms numbers 1, 2,3,..., 12 into the corresponding month namesJanuary, February, March, ..., December.Hint: Make a very long string "January FebruaryMarch...", in which you add spaces such thateach month name has the same length. Thenuse substring to extract the month you want.4. Printing a grid. Write a program that prints thefollowing grid to play tic-tac-toe.+--+--+--+||||+--+--+--+||||+-+-+-++-+-+-+Of course, you could simply write sevenstatements of the formSystem.out.println("+--+--+--+");You should do it the smart way, though. Declarestring variables to hold two kinds of patterns: acomb-shaped pattern and the bottom line. Printthe comb three times and the bottom line once.5. Write a program that prints a Christmas tree, asshown below. Remember to use escapesequences.1H E L L ^11

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6. Write a program that reads in an integer andbreaks it into a sequence of individual digits. Forexample, the input 16384 is displayed as16384You may assume that the input has no morethan five digits and is not negative.7. Decimal to hex. Write a program that promptsthe user to enter an integer between 0 and 15and displays its corresponding hex number.Here are some sample runs (user input in color):Enter a decimal value (0 to 15): 11The hex value is BEnter a decimal value (0 to 15): 5The hex value is 58. Convert number grade to letter. Write aprogram that prompts the user to enter anumeric grade 4, 3, 2, 1, or 0 and displays itscorresponding letter value A, B, C, D, or F.Here is a sample run (user input in color):Enter a numeric grade: 3The letter value for grade 3 is B 1. Write a program that reads a number between1,000 and 999,999 from the user, where theuser enters a comma in the input. Then printthe number without a comma. Here is a sampledialog; the user input is in color:Please enter an integer between 1,000and 999,999: 23,45623456Hint: Read the input as a string. Measure thelength of the string. Suppose it contains ncharacters. Then extract substrings consisting ofthe first n - 4 characters and the last threecharacters.2. Writing large letters. A large letter H can beproduced like this:*It can be declared as a string literal like this:final string LETTER_H = &#34;* *%n**n*****n* *n* *%n&#34;;Print the string with System.out.printf. Theen format specifiers cause line breaks in theoutput. Do the same for the letters E, L, and O.Then write in large letters:O3. Write a program that transforms numbers 1, 2,3,..., 12 into the corresponding month namesJanuary, February, March, ..., December.Hint: Make a very long string &#34;January FebruaryMarch...&#34;, in which you add spaces such thateach month name has the same length. Thenuse substring to extract the month you want.4. Printing a grid. Write a program that prints thefollowing grid to play tic-tac-toe.+--+--+--+||||+--+--+--+||||+-+-+-++-+-+-+Of course, you could simply write sevenstatements of the formSystem.out.println(&#34;+--+--+--+&#34;);You should do it the smart way, though. Declarestring variables to hold two kinds of patterns: acomb-shaped pattern and the bottom line. Printthe comb three times and the bottom line once.5. Write a program that prints a Christmas tree, asshown below. Remember to use escapesequences.1H E L L ^11

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