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Main.java

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import java.util.Scanner;

public class Main {

public static void main(String[] args) {

int choice, key;

HashMap h = new HashMap(7);

while (true) {

System.out.println("Enter your Choice :");

System.out.println("1. Add Key");

System.out.println("2. Delete Key");

System.out.println("3. Print Table");

System.out.println("4. Exit");

Scanner In = new Scanner(System.in);

choice = In.nextInt();

switch (choice) {

case 1: {

System.out.println("Enter the Key: ");

key = In.nextInt();

h.insertHash(key);

break;

}

case 2: {

System.out.println("Enter the Key delete: ");

key = In.nextInt();

h.deleteHash(key);

break;

}

case 3: {

System.out.println("Print table");

h.displayHashtable();

break;

}

case 4: {

return;

}

}

}

}

}