자바/Collections Framework

컬렉션프레임웍(Collections Framework) - 스택(stack)

은은하게미친자 2022. 10. 2. 02:04
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        /*
         * 스택
         * push 넣기
         * peek 마지막값 확인하기
         * pop  꺼내기 
         */
        Stack<String> stack = new Stack<String>();
        //우선수위큐 최댓값 혹은 최소값으로 
        for (int i= 1;i<=10;i++) {
            stack.push(Integer.toString(i));
        }
        System.out.println("stack" + stack.toString());
        System.out.println(stack.peek());
        stack.pop();
        System.out.println("stack pop" + stack.toString());
        stack.remove(3);
        System.out.println("stack remove" + stack.toString());
        stack.remove(0);
        System.out.println("stack remove" + stack.toString());


 

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class code1_stack {
    public static void main(String[] args) {
        System.out.println("stack test");
        //FILO
        Stack<String> stack = new Stack<String>();
        
        // 비어있는지 확인
        System.out.println("stack이 비어있나요? " + stack.empty());
        // 값 집어넣기
        stack.push("item 1 push");
        stack.push("item 2 push");
        System.out.println(stack);
        // 나올 값 확인하기 
        System.out.println(stack.peek());
        // 나올 순서 찾기 : 인덱스는 1부터 시작 
        System.out.println(stack.search("item 1 push"));
        System.out.println(stack.search("item 2 push"));
        // 값 빼기
        stack.pop();
        System.out.println(stack);
    }
}
 
 
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