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import java.util.HashSet;
import java.util.Set;

public class UniqueChecker
{

private String sentence = "This will be compard";
private Set<String> checker;
private String isUnique =...

import java.util.Set;

public class UniqueChecker
{

private String sentence = "This will be compard";
private Set<String> checker;
private String isUnique = "The sentence is unique";...

Ok I am trying to compare a string to see if all characters are unique. If there is a library for this or a better way to approach this do tell. However I find it important to understand what is...