Buku = using stack library, Kartu = Manual Stack

Author: akhmdrdlo

stackBuku.java

@@ -0,0 +1,52 @@
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.Stack;
+
+public class stackBuku {
+    private static Stack<String> stack;
+    private static int batas;
+
+    public static void main(String[] args) throws IOException {
+        System.out.println("Berapa banyak buku yang ingin disimpan?");
+        batas = inputBuku();
+        buatStack(batas);
+        taruhBuku();
+        lihatData();
+    }
+
+    public static void buatStack(int batas) {
+        stack = new Stack<String>();
+    }
+
+    public static void taruhBuku() throws IOException {
+        String data;
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        System.out.println("Saatnya menaruh buku!! ");
+        for (int i = 0; i < batas; i++) {
+            System.out.print("Buku ke-" + (i + 1) + " : ");
+            data = br.readLine(); // Menggunakan nextLine() untuk membaca string
+            stack.push(data);
+            System.out.println("_______________________________");
+        }
+    }
+
+    private static void lihatData() {
+        System.out.println("_______________________________");
+        System.out.println("Buku yang ditumpuk dari bawah ke atas : ");
+        String dataBuku;
+        for (int i = 0; i < batas; i++) {
+            // Mengeluarkan elemen dari stack
+            dataBuku = stack.pop();
+            System.out.println("Judul Buku = " + dataBuku);
+        }
+    }
+
+    private static int inputBuku() throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        String angkaInput = br.readLine();
+        int data = Integer.parseInt(angkaInput);
+        return data;
+    }
+}

stackKartu.java

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+import java.util.Scanner;
+
+public class stackKartu {
+    private int batas;
+    private String[] kartuStack;
+    private int top;
+    public static Scanner input = new Scanner(System.in);
+
+    public stackKartu(int s) {
+        batas = s;
+        kartuStack = new String[batas];
+        top = -1;
+    }   
+    public void push(String namaKartu) {
+        kartuStack[++top] = namaKartu;
+    }  
+    public String pop() {
+        return kartuStack[top--];
+    } 
+    public String peek() {
+        return kartuStack[top];
+    }
+    public boolean isEmpty() {
+        return (top == -1);
+    }
+    public boolean isFull() {
+        return (top == batas - 1);
+    } 
+    public static void main(String[] args) {
+        System.out.println("Berapa kartu yang ingin ditumpuk?");
+        int batas = input.nextInt();
+        stackKartu kartu = new stackKartu(batas);
+        input.nextLine();
+        for (int i = 0; i < batas; i++) {
+            System.out.print("Kartu ke-" + (i + 1) + " : ");
+            String namaKartu = input.nextLine();
+            kartu.push(namaKartu);
+        }
+        String atas = kartu.peek();
+        System.out.println("Kartu yang paling atas : "+atas);
+        while (!kartu.isEmpty()) {
+            System.out.println("_________________________________");
+            System.out.println("Daftar nama kartu yang ditumpuk (dari atas ke bawah)");
+            String hasil = kartu.pop();
+            System.out.println(hasil);
+            System.out.print(" ");
+        }
+        input.close();
+    }
+}