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package nextjv;

import java.util.Scanner;

import java.util.Stack;

public class Stackinjava {

public static void main(String[] args)

{

Scanner sc = new Scanner(System.in);

Stack<String> stackChuoi = new Stack<String>();

//stackChuoi.push("giaitri") => dua gia tri vao stack

//stackChuoi.pop() => lay gia tri ra xoa khoi stack

// stackChuoi.peek() => lay gia tri ra nhung khong xoa

//stackChuoi.clear() => xoa tat ca phan tu trong stack

// stackChuoi.contains("giaitri") => xac dinh gia tri co ton tai trong stack hay khong

//stackChuoi.size() => do lon

// vi du dao nguoc chuoi

System.out.println("Nhap vao chuoi");

String s = sc.nextLine();

for(int i=0;i<s.length();i++)

{

stackChuoi.push(s.charAt(i)+"");

}

System.out.println("Chuoi dao nguoc");

for(int i=0;i<s.length();i++)

{

System.out.print(stackChuoi.pop());

}

System.out.println("");

//vi du chuyen tu he thap phan sang he nhi phan

System.out.println("Nhap 1 so nguyen suong tu ban phim");

Stack<String> stackSoDu = new Stack<String>();

int x = sc.nextInt();

while(x>0)

{

int soDu = x%2;

stackSoDu.push(soDu+"");

x/=2;

}

System.out.println("So ni phan la: ");

int n = stackSoDu.size();

for(int i=0;i<n; i++)

{

System.out.print(stackSoDu.pop());

}

System.out.println("");

sc.close();

}

}