Write the following programs in Java: In the Converter class write the static method, bin2decimal(String bin). The parameter for this method is an unsigned (nonnegative) binary number represented by a string. The method returns the decimal equivalent for the binary parameter, as an integer. If the binary string is invalid (contains characters other than ‘0’ and ‘1’), the method returns -1. Convert from a binary (b) string with up to 16 digits to decimal (d) using the following formula: ? = ?0 + ?1 × 2 + ?2 × 22 +⋯+ ?7 × 215 where b0, b1, ?2, … ?7 are the binary digits in order of increasing significance. For example, 1101 is: 1 + 0×2 + 1×22 + 1×23 = 13 in decimal. Side note: You may NOT use the decode method of the Long wrapper class instead of this formula. In the Converter class write another static method, english2encrypted(String english). The parameter for this method is a word or sentence represented by a string. The word or sentence should only contain letters (no digits, punctuation, or other special characters); however, it may contain both upper- and lower-case letters. If you want to include a number you must write out the word that represents the number (ie: 8 must be written out as “eight”). The method returns the encrypted equivalent for the English word or sentence parameter, as a string. If the String parameter contains any invalid characters (i.e. characters other than letters or spaces) then these characters will be skipped and not included in the return String (note: the words must not contain any invalid characters when applying the encryption rules below). The rules for encrypting the English words are as follows: • The encrypted words will all be in upper-case letters. • If a word has 2 or more letters, switch the first and last letter. • Replace all E’s in the English words with 3’s • Replace A’s in the English words with V’s, and replace V’s with A’s. • Replace all O’s with Q’s, and replace Q’s with O’s. • Replace all B’s with 8’s • Replace all Y’s with I’s, and replace I’s with Y’s. Examples: “Developer” becomes “R3A3LQP3D” “Dave and Jeni in a group” becomes “3VAD DNV Y3NJ NY V PRQUG” "I’m not sure!" becomes "MY TQN 3URS"
Write the following programs in Java:
In the Converter class write the static method, bin2decimal(String bin). The parameter for this method is an unsigned (nonnegative) binary number represented by a string. The method returns the decimal equivalent for the binary parameter, as an integer.
If the binary string is invalid (contains characters other than ‘0’ and ‘1’), the method returns -1. Convert from a binary (b) string with up to 16 digits to decimal (d) using the following formula:
? = ?0 + ?1 × 2 + ?2 × 22 +⋯+ ?7 × 215
where b0, b1, ?2, … ?7 are the binary digits in order of increasing significance. For example, 1101 is: 1 + 0×2 + 1×22 + 1×23 = 13 in decimal. Side note: You may NOT use the decode method of the Long wrapper class instead of this formula.
In the Converter class write another static method, english2encrypted(String english). The parameter for this method is a word or sentence represented by a string. The word or sentence should only contain letters (no digits, punctuation, or other special characters); however, it may contain both upper- and lower-case letters. If you want to include a number you must write out the word that represents the number (ie: 8 must be written out as “eight”). The method returns the encrypted equivalent for the English word or sentence parameter, as a string.
If the String parameter contains any invalid characters (i.e. characters other than letters or spaces) then these characters will be skipped and not included in the return String (note: the words must not contain any invalid characters when applying the encryption rules below).
The rules for encrypting the English words are as follows:
• The encrypted words will all be in upper-case letters.
• If a word has 2 or more letters, switch the first and last letter.
• Replace all E’s in the English words with 3’s
• Replace A’s in the English words with V’s, and replace V’s with A’s.
• Replace all O’s with Q’s, and replace Q’s with O’s.
• Replace all B’s with 8’s
• Replace all Y’s with I’s, and replace I’s with Y’s.
Examples:
“Developer” becomes “R3A3LQP3D”
“Dave and Jeni in a group” becomes “3VAD DNV Y3NJ NY V PRQUG”
"I’m not sure!" becomes "MY TQN 3URS"
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