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Create a class named Caesar Cipher that has the following. • Write a public static method named encrypt that takes a String s and an int das parameters and returns a String. The Caesar cipher is one of the earliest known and simplest ciphers. It is a type of substitution cipher in which each letter in the text is "shifted" a certain number of places down the alphabet. For example, with a shift of 1, a would become b, b would become c, and so on. The method is named after Julius Caesar, who used it to communicate with his generals. • The encrypt method should take the String parameters and encrypt it using the Caesar cipher with a shift of d. Note that there is no upper limit (other than the max value of the int primitive type) on the value for d. You can assume that there is no punctuation and that the String parameter will always contain lower case letters. • Additional rules: You may use one conditional (if) statements, and it can have only one (else) statement. Create a test class named CaesarCipherTest that contains the main method and prints the following method outputs in the following order, with a blank line between each encryption. Method Output Method Call CaesarCipher.encrypt("abc", 1) CaesarCipher.encrypt("abc", 25) CaesarCipher.encrypt("abc", 50) CaesarCipher.encrypt("attack at dawn", 17) Shift: 1 abc encrypted is bcd Shift: 25 abc encrypted is zab Shift: 50 abc encrypted is yza Shift: 17 attack at dawn encrypted is rkkrtb rk urne • Write a public static method named decrypt that takes a String s and an int d as parameters and returns a String. • The decrypt method should take the String parameters and decrypt it using the Caesar cipher with a shift back of d. Note that there is no upper limit (other than the max value of the int primitive type) on the value for d. You can assume that there is no punctuation and that

Create a class named Caesar Cipher that has the following. • Write a public static method named encrypt that takes a String s and an int das parameters and returns a String. The Caesar cipher is one of the earliest known and simplest ciphers. It is a type of substitution cipher in which each letter in the text is "shifted" a certain number of places down the alphabet. For example, with a shift of 1, a would become b, b would become c, and so on. The method is named after Julius Caesar, who used it to communicate with his generals. • The encrypt method should take the String parameters and encrypt it using the Caesar cipher with a shift of d. Note that there is no upper limit (other than the max value of the int primitive type) on the value for d. You can assume that there is no punctuation and that the String parameter will always contain lower case letters. • Additional rules: You may use one conditional (if) statements, and it can have only one (else) statement. Create a test class named CaesarCipherTest that contains the main method and prints the following method outputs in the following order, with a blank line between each encryption. Method Output Method Call CaesarCipher.encrypt("abc", 1) CaesarCipher.encrypt("abc", 25) CaesarCipher.encrypt("abc", 50) CaesarCipher.encrypt("attack at dawn", 17) Shift: 1 abc encrypted is bcd Shift: 25 abc encrypted is zab Shift: 50 abc encrypted is yza Shift: 17 attack at dawn encrypted is rkkrtb rk urne • Write a public static method named decrypt that takes a String s and an int d as parameters and returns a String. • The decrypt method should take the String parameters and decrypt it using the Caesar cipher with a shift back of d. Note that there is no upper limit (other than the max value of the int primitive type) on the value for d. You can assume that there is no punctuation and that

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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● Additional rules: You may use one conditional (if) statements, and it can have only one (else) statement. In your CaesarCipherTest class, print out the following method outputs in the following order with a blank space in between each decryption as well. Check the following usage examples to check your code. Method Call CaesarCipher.decrypt("bcd", 1) CaesarCipher.decrypt("zab", 25) CaesarCipher.decrypt("yza", 50) CaesarCipher.decrypt("rkkrtb rk urne", 17) Method Output Shift: 1 bcd decrypted is abc Shift: 25 zab decrypted is abc Shift: 50 yza decrypted is abc. Shift: 17 rkkrtb rk urne decrypted is attack at dawn
Transcribed Image Text:● Additional rules: You may use one conditional (if) statements, and it can have only one (else) statement. In your CaesarCipherTest class, print out the following method outputs in the following order with a blank space in between each decryption as well. Check the following usage examples to check your code. Method Call CaesarCipher.decrypt("bcd", 1) CaesarCipher.decrypt("zab", 25) CaesarCipher.decrypt("yza", 50) CaesarCipher.decrypt("rkkrtb rk urne", 17) Method Output Shift: 1 bcd decrypted is abc Shift: 25 zab decrypted is abc Shift: 50 yza decrypted is abc. Shift: 17 rkkrtb rk urne decrypted is attack at dawn
Practice Problem #2 Create a class named CaesarCipher that has the following. Write a public static method named encrypt that takes a String s and an int das parameters and returns a String. • The Caesar cipher is one of the earliest known and simplest ciphers. It is a type of substitution cipher in which each letter in the text is "shifted" a certain number of places down the alphabet. For example, with a shift of 1, a would become b, b would become c, and so on. The method is named after Julius Caesar, who used it to communicate with his generals. • The encrypt method should take the String parameters and encrypt it using the Caesar cipher with a shift of d. Note that there is no upper limit (other than the max value of the int primitive type) on the value for d. You can assume that there is no punctuation and that the String parameter will always contain lower case letters. Additional rules: You may use one conditional (if) statements, and it can have only one (else) statement. • Create a test class named Caesar CipherTest that contains the main method and prints the following method outputs in the following order, with a blank line between each encryption. Method Output Method Call CaesarCipher.encrypt("abc", 1) CaesarCipher.encrypt("abc", 25) CaesarCipher.encrypt("abc", 50) CaesarCipher.encrypt("attack at dawn", 17) Shift: 1 abc encrypted is bcd Shift: 25 abc encrypted is zab Shift: 50 abc encrypted is yza Shift: 17 attack at dawn encrypted is rkkrtb rk urne Write a public static method named decrypt that takes a Strings and an int d as parameters and returns a String. • The decrypt method should take the String parameters and decrypt it using the Caesar cipher with a shift back of d. Note that there is no upper limit (other than the max value of the int primitive type) on the value for d. You can assume that there is no punctuation and that the String parameter will always contain lower case letters.
Transcribed Image Text:Practice Problem #2 Create a class named CaesarCipher that has the following. Write a public static method named encrypt that takes a String s and an int das parameters and returns a String. • The Caesar cipher is one of the earliest known and simplest ciphers. It is a type of substitution cipher in which each letter in the text is "shifted" a certain number of places down the alphabet. For example, with a shift of 1, a would become b, b would become c, and so on. The method is named after Julius Caesar, who used it to communicate with his generals. • The encrypt method should take the String parameters and encrypt it using the Caesar cipher with a shift of d. Note that there is no upper limit (other than the max value of the int primitive type) on the value for d. You can assume that there is no punctuation and that the String parameter will always contain lower case letters. Additional rules: You may use one conditional (if) statements, and it can have only one (else) statement. • Create a test class named Caesar CipherTest that contains the main method and prints the following method outputs in the following order, with a blank line between each encryption. Method Output Method Call CaesarCipher.encrypt("abc", 1) CaesarCipher.encrypt("abc", 25) CaesarCipher.encrypt("abc", 50) CaesarCipher.encrypt("attack at dawn", 17) Shift: 1 abc encrypted is bcd Shift: 25 abc encrypted is zab Shift: 50 abc encrypted is yza Shift: 17 attack at dawn encrypted is rkkrtb rk urne Write a public static method named decrypt that takes a Strings and an int d as parameters and returns a String. • The decrypt method should take the String parameters and decrypt it using the Caesar cipher with a shift back of d. Note that there is no upper limit (other than the max value of the int primitive type) on the value for d. You can assume that there is no punctuation and that the String parameter will always contain lower case letters.
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