
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Write a public static method named getStringReversed that takes in 1 argument of type String and returns the String in reverse order.
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- modify it to create a classthat contains a static method; the method takes a string as a parameter andreturns a boolean value indicating whether the parameter string has repeatedcharacters in it or not. That is, return true if there is at least one characterwhich appear more than once in the string. The string should be input by the user public class Qns3 {public static void main(String args[]) { //input.Scanner Input = new Scanner(System.in);System.out.println ( "Enter the String to check for duplicate characters:");String k = Input.next();// repeated = true.boolean Repeat = false;for (int i = 0; i < k.length(); i++)for (int j = i + 1; j < k.length(); j++)if (k.charAt(i) == k.charAt(j))Repeat=true;if (Repeat){System.out.println("String have repeated characters" +k);}elseSystem.out.println( "String have no repeated characters" +k);} }arrow_forwardTASK 3 The String class is provided in the Java library. Provide your own Java implementation for the following methods (name the new class MyString): public Mystring(char [] chars); public char charat (int index); int length(); public Mystring substring(int begin, int end); public Mystring toLowercase); public boolean equals (Mystring s); public static Mystring valueof (int i); public int compare(string s); public Mystring substring(int begin); public Mystring toupperCase(); Write a Java test program that tests all methods in the class.arrow_forwardjavaarrow_forward
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