java - Need to retain values of checkings and savings variables through methods -

i'm having hard time keeping values of checkings , savings , being able display checkings , savings current balance.

package atmmethod;  import java.util.locale; import java.util.scanner;  /**  *  * @author jfumar  */ public class atmmethod {  private static int option;  /**  * @param args command line arguments  */ public static void main(string[] args) {     //prompts user options in simulation using methods      {         system.out.println("welcome new , improved atm program methods!");         displaymainmenu();         double savings = 1000;         double checkings = 500;         system.out.println("savings balance is: " + savings);         system.out.println("checking balance is:" + checkings);          scanner input = new scanner(system.in);         system.out.print("enter option here: ");         int option = input.nextint();          switch (option) {             case 1:                 depositoption();                 break;             case 2:                 withdrawoption();                 break;             case 3:                 checkingbalance();                 break;             default:                 system.out.print("goodbye!");                 system.exit(0);          }      } while (option != 4);     system.out.println("thank using new atm");  }  public static void displaymainmenu() {     system.out.println("select options numbers 1, 2, 3, or 4");     system.out.println("1. deposit");     system.out.println("2. withdraw");     system.out.println("3. balance");     system.out.println("4. exit");  }  public static void depositoption() {     double currentsavings = 1000;     double currentcheckings = 500;     double amount;      system.out.println("where deposit money?");     system.out.println("1. savings");     system.out.println("2. checkings");     scanner input = new scanner(system.in);     system.out.print("enter choice here: ");     int choice = input.nextint();      if (choice == 1) {         system.out.println("how want deposit in savings?");         amount = input.nextdouble();         currentsavings += amount;         system.out.println("your savings balance now: " + currentsavings);     } else {         system.out.println("how want deposit in checkings?");         amount = input.nextdouble();         currentcheckings += amount;         system.out.println("your checkings balance now: " + currentcheckings);      }  }  public static void withdrawoption() {     double currentsavings = 1000;     double currentcheckings = 500;     double amount;      system.out.println("where withdraw money?");     system.out.println("1. savings");     system.out.println("2. checkings");     scanner input = new scanner(system.in);     system.out.print("enter choice here: ");     int choice = input.nextint();      if (choice == 1) {         system.out.println("how want withdraw savings?");         amount = input.nextdouble();         currentsavings -= amount;         system.out.println("your savings balance now: " + currentsavings);     } else {         system.out.println("how want withdraw checkings?");         amount = input.nextdouble();         currentcheckings -= amount;         system.out.println("your checkings balance now: " + currentcheckings);      }  }  public static void checkingbalance() {     system.out.println("current balances");     system.out.println("savings balance is: ");     system.out.println("checkings balance is: "); }  } 

savings , checkings should fields of class, not local variables. local variables destroyed @ end of method.

public class atmmethod {      private static double currentsavings = 500;     private static double currentcheckings = 1000;      //...  } 

by way methods , fields static, not good, that's story