How do I remove duplicates from a string?

1) By using for loop

1. In the first step, we have to convert the string into a character array.
2. Calculate the size of the array.
3. Call removeDuplicates() method by passing the character array and the length.
4. Traverse all the characters present in the character array.
5. Check whether the str[i] is present before or not.

What command do we use to translate characters or to remove duplicates of a character?

The tr command in UNIX is a command line utility for translating or deleting characters.

How do you find duplicate characters in a given string in C?

C

1. #include
2. #include
3. int main()
4. {
5. char string[] = “Great responsibility”;
6. int count;
7. printf(“Duplicate characters in a given string: \n”);
8. //Counts each character present in the string.

How do you remove duplicates from an array in place in C?

Algorithm to delete the duplicate elements from sorted array

1. Define the size of elements of the array.
2. Read the array elements from the user.
3. Repeat from i = 1 to num. if (arr[i] != arr [i + 1] temp [j++] = arr[i] temp [j++] = arr[n- 1] Repeat from i = 1 to j. arr[i] = temp[i]
4. Print unique elements of the array.

How do you remove characters from the first string which are present in the second string?

This is a C Program to remove all characters in second string which are present in first string. This C Program removes all characters from second string which were present in the first string. Take input from the user and perform string operations as shown in the program below.

How do you remove duplicates from a string in Java without using collections?

Remove duplicates from arraylist without using collections

1. package arrayListRemoveduplicateElements;
2. import java.util.ArrayList;
3. public class RemoveDuplicates {
4. public static void main(String[] args){
5. ArrayList al = new ArrayList();
6. al.add(“java”);
7. al.add(‘a’);
8. al.add(‘b’);

How do I remove duplicates from a string in Java?

Algorithm

1. Define a string.
2. Convert the string into lowercase to make the comparison insensitive.
3. Split the string into words.
4. Two loops will be used to find duplicate words.
5. If a match found, then increment the count by 1 and set the duplicates of word to ‘0’ to avoid counting it again.

How do you remove duplicate numbers in an array?

Algorithm to remove duplicate elements in an array (sorted array)

1. Input the number of elements of the array.
2. Input the array elements.
3. Repeat from i = 1 to n.
4. – if (arr[i] != arr[i+1])
5. – temp[j++] = arr[i]
6. – temp[j++] = arr[n-1]
7. Repeat from i = 1 to j.
8. – arr[i] = temp[i]

How do I remove a character from a string in C#?

Remove specific characters from a string in C#

1. Using String.Replace() method. A fairly simple solution is to use the String.Replace() method for replacing all occurrences of specified characters in the current string.
2. Using String.Split() method. The idea is to split the string with given characters.
3. Regular Expressions.

How do you remove a character from a string in C++?

In C++ we can do this task very easily using erase() and remove() function. The remove function takes the starting and ending address of the string, and a character that will be removed.

How do you delete duplicate elements in an array?

Remove duplicates from sorted array

1. Create an auxiliary array temp[] to store unique elements.
2. Traverse input array and one by one copy unique elements of arr[] to temp[]. Also keep track of count of unique elements. Let this count be j.
3. Copy j elements from temp[] to arr[] and return j.