添加方法时我的java输出出现两次?

当我运行代码时,它工作正常,直到到达IF语句为止,在该语句中我可以选择输入“ 1”或“ 2”,并且结果两次显示下一个println?我对Java还是陌生的,因此将不胜感激。

import java.util.Scanner;
public class Assignment{ 
public static void main ( String[] args ) {

    Assignment game;
    game = new Assignment();
    game.darkJungle();
    game.oldBridge();
    game.abandonedShack();}

public void darkJungle() {

Scanner scanner = new Scanner(System.in);   

    System.out.println("Hello adventurer. You awake from your slumber in a dark jungle, with no 
memory of your past life.");
    System.out.println(""); 


    System.out.println("Before you set off exploring for answers, what do you wish to call 
yourself?");
    String playerName = scanner.next();

    System.out.println("hello " + playerName); 
    System.out.println();
    System.out.println("Inventory");
    System.out.println("-------------");
    String weapon;
    weapon = "glock";
    boolean rustyKey = true;


    System.out.println(weapon);
    System.out.println("rustyKey");
    System.out.println();
    System.out.println("You look to the east and west and notice they're the safest looking paths. 
Which path do you set off on?"); 
    System.out.println("1: west");
    System.out.println("2: east");

    int choice;
    choice = scanner.nextInt();


    if(choice==1){
        System.out.println("You have wandered onto a creaky old bridge.");

        oldBridge();}

    if(choice==2) 
        {System.out.println("You find an abandoned shack.");

        abandonedShack();}  


}
public  void oldBridge() {

System.out.println("hello world");  

}
public  void abandonedShack() {


}



}

输出看起来像这样

你好冒险家。您在黑暗的丛林中从沉睡中醒来,对过去的生活毫无记忆。

在着手探索答案之前,您想称呼自己什么? 约翰公民 你好约翰公民

库存

格洛克 生锈的钥匙

您向东和向西看,会发现它们是最安全的道路。您沿哪个路径出发? 1:西 2:东 1个 您已经走到一座破旧的旧桥上。 你好,世界 你好,世界

当我进入helloworld部分时,它将打印两次。为什么会这样,我该如何解决?