Java Programs

package programs;
/** INPUT1= helloworld
 * INPUT2= 2
 * O/P= helwrd;
 */

import java.util.Scanner;

public class RepeatedDelete {
public static void main(String args[]) {
String output = "";
Scanner in = new Scanner(System.in);
System.out.println("Enter the Input String : ");
String input1 = in.next();

System.out.println("Enter the No of Repeated Elements : ");
int input2 = in.nextInt();

char[] arr = input1.toCharArray();

char[] arr1 = new char[arr.length];

int count;

for (int i = 0; i < arr.length; i++) {
count = 0;
char val = arr[i];
for (int j = 0; j < arr.length; j++) {
if (arr[i] == arr[j]) {
count++;

}
}

// Count<input2
if (count < input2) {
arr1[i] = arr[i];
}

// Count=Input2
else if (count == input2) {
arr1[i] = ' ';
}

// Count>input2

else if (count > input2) {

int index = count - input2;

for (int k = 0; k < arr.length; k++) {
if (arr[k] == val) {
if (index > 0) {
arr1[k] = val;
index--;
} else {
arr1[k] = ' ';
}
}
}
}
}

// Printing char array
for (int i = 0; i < arr1.length; i++) {
if (arr1[i] != ' ') {
output = output + arr1[i];
}
}

output = output.toString();
System.out.println(output);

}
}