Question

a string is said to be Unique none of the letters present in the string are repeated
Write a program to accept a string and check whether the string is Unique or not.
The program displays a message accordingly
Sample Input COMPUTERS
Sample Output Unique String​

Answer 1

Explanation:

A string is said to be Unique none of the letters present in the string are repeated

Write a program to accept a string and check whether the string is Unique or not.

The program displays a message accordingly

Sample Input COMPUTERS

Sample Output Unique String

Answer 2

Answer:

import java.util.Scanner;

class no_14

{

public static void main(String )args[ ])

{

Scanner in=new Scanner(System.in);

System.out.print("Enter a string:");

String str=in.nextLine();

str=str.toUppercase();

boolean isUnique=true;

int len=str.length();

for(int i=0;i<len;i++)

{

char ch=str.charAt(i);

for(int j=i+1;j<len;j++)

{

if(ch==str.charAt(j))

{

isUnique=false;

break;

}

}

if(! isUnique)

break;

}

if(isUnique)

System.out.println("Unique String");

else

System.out.println("Not Unique String");

}

}