harryboi17 · harryboi17 · Jul 27, 2023 · Jul 27, 2023
diff --git a/Assignment/Q1.java b/Assignment/Q1.java
@@ -0,0 +1,59 @@
+package Assignment;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+
+public class Q1 {
+    public static void main(String[] args) throws IOException {
+//        String door_fitting[] = {"Room Number 1", "Secret room"};
+//        String codes[] = {"910", "811"};
+        String door_fitting[] = {"Room 666", "Don't enter"};
+        String codes[] = {"313", "800"};
+//        String door_fitting[] = {"Portal 1", "Portal 2", "Portal 3"};
+//        String codes[] = {"501"};
+//        String door_fitting[] = {"Door to nowhere", "Door to nowhere 2"};
+//        String codes[] = {"1203", "1203"};
+
+            int n = door_fitting.length;
+            Map<String, Integer> mp = new HashMap<>();
+
+            for (int i = 0; i < n; i++) {
+                mp.put(codes[i], mp.getOrDefault(codes[i], 0) + 1);
+            }
+
+            StringBuilder ans = new StringBuilder();
+
+            for (int i = 0; i < n; i++) {
+                int m = door_fitting[i].length();
+                int l = 0;
+                int d = 0;
+                boolean r = false;
+
+                for (int j = 0; j < m; j++) {
+                    if (Character.isLowerCase(door_fitting[i].charAt(j))) {
+                        l++;
+                    }
+                    if (Character.isDigit(door_fitting[i].charAt(j))) {
+                        d++;
+                    }
+                }
+
+                for (int j = 0; j < n - 4; j++) {
+                    String data = door_fitting[i].substring(j, j + 4).toLowerCase();
+                    if (data.equals("room")) {
+                        r = true;
+                        break;
+                    }
+                }
+
+                String x = l + (r ? "1" : "0") + d;
+                if (mp.getOrDefault(x, 0) == 0) {
+                    continue;
+                }
+
+                ans.append(door_fitting[i]).append("-").append(l).append((r ? "1" : "0")).append(d).append(";");
+            }
+
+            System.out.println(ans);
+    }
+}
diff --git a/Assignment/test.java b/Assignment/test.java
@@ -0,0 +1,10 @@
+package Assignment;
+
+public class test {
+    static int val = 10;
+    public static void main(String[] args) {
+        double num = 2.413;
+        int whole = (int) num;
+        int fraction = whole- (int)num;
+    }
+}
diff --git a/BASICS/Multithreading.java b/BASICS/Multithreading.java
@@ -18,16 +18,17 @@ public void run(){
 
 class MyThreadRun1 implements Runnable{
     public void run(){
-        int n = 100;
+        int n = 10;
         while(n-- != 0)
             System.out.println("Im Harshit Bansal");
     }
 }
 class MyThreadRun2 implements Runnable{
+    final int n = 100;
     public void run(){
-        int n = 100;
+        int n = 10;
         while(n-- != 0)
-            System.out.println("Im Vanshika M");
+            System.out.println(this.n);
     }
 }
 

diff --git a/First_project/Multiscreen_app.java b/First_project/Multiscreen_app.java
@@ -0,0 +1,57 @@
+/*
+package com.example.multiple_screen_app;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.EditText;
+
+public class MainActivity extends AppCompatActivity {
+    public static final String MSG = "com.example.multiple_screen_app.ORDER";
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+    }
+
+    public void PlaceHolder(View view){
+        Intent intent = new Intent(this, OrderActivity.class);
+        EditText editText1 = findViewById(R.id.editText1);
+        EditText editText2 = findViewById(R.id.editText2);
+        EditText editText3 = findViewById(R.id.editText3);
+        String message = "Order for " +  editText1.getText().toString() + ", " + editText2.getText().toString() +
+                         " & " + editText3.getText().toString() + " is placed.";
+
+        intent.putExtra(MSG, message);
+        startActivity(intent);
+    }
+}
+ */
+/*
+package com.example.multiple_screen_app;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.widget.TextView;
+
+public class OrderActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_order);
+
+        Intent intent = getIntent();
+        String message = intent.getStringExtra(MainActivity.MSG);
+
+        TextView textview = findViewById(R.id.OrderId);
+        textview.setText(message);
+    }
+}
+ */
+//Note : to add a going back option from new page, go to Android Manifest and write
+//       android:parentActivityName=".MainActivity" next to android:name=".OrderActivity"
diff --git a/First_project/Notes.java b/First_project/Notes.java
@@ -0,0 +1,25 @@
+package First_project;
+/*
+APK : it is collection of different files(like code, audio, video) complied and bundled into single file
+AVD : Android virtual device, it is an emulator configuration that simulated a physical Android Device
+view group : Holds View and View groups
+
+findViewById(R.id.)
+Toast.makeText(this, "Message", Toast.LENGTH_SHORT).show()
+button.setOnClickListener(new View.OnClickListener(){
+           @Override
+           public void onClick(View view) {
+           }
+});
+
+Use gravity in linear layout
+right click in TextView, and get borderline constrain, to align all text views in a same line
+
+use Layout weight to assign how much weight an attribute wil take in the layout
+E.x. 3 attributes with weight 1, 2, 1 then the top and bottom will take 25% space each and mid will take 50%
+ */
+public class Notes {
+    public static void main(String[] args) {
+
+    }
+}
diff --git a/First_project/tic_tac_toe.java b/First_project/tic_tac_toe.java
@@ -0,0 +1,108 @@
+/*
+package com.example.tic_tac_toe;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.media.Image;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import org.w3c.dom.Text;
+
+import java.util.Arrays;
+
+public class MainActivity extends AppCompatActivity {
+    // 1 - X
+    // 0 - 0
+    // 2 - Blank
+    boolean gameActive = true;
+    int activePlayer = 1;
+    int[] gameState = {2, 2, 2, 2, 2, 2, 2, 2, 2};
+    int[][] win_pos = {{0,1,2}, {3,4,5}, {6,7,8},
+                       {0,3,6}, {1,4,7}, {2,5,8},
+                       {0,4,8}, {2,4,6}};
+
+    public void taptap(View view){
+        if(!gameActive){
+            gameReset(view);
+            return;
+        }
+
+        TextView status = findViewById(R.id.status);
+
+        ImageView img = (ImageView) view;
+        int tapperImg = Integer.parseInt(img.getTag().toString())   ;
+
+        if(gameState[tapperImg] == 2 && gameActive){
+            gameState[tapperImg] = activePlayer;
+            img.setTranslationY(-1000f);
+
+            if(activePlayer == 1){
+                img.setImageResource(R.drawable.x);
+                activePlayer = 0;
+                status.setText(R.string.o_turn);
+            }
+            else{
+                img.setImageResource(R.drawable.o);
+                activePlayer = 1;
+                status.setText(R.string.X_turn);
+            }
+            img.animate().translationYBy(1000f).setDuration(200);
+
+            //Check if any player has won
+            for(int[] win : win_pos){
+                if(gameState[win[0]] == gameState[win[1]] && gameState[win[1]] == gameState[win[2]]
+                    && gameState[win[0]] != 2){
+                    //Somebody has won
+                    String winnerStr;
+                    if(gameState[win[0]] == 1){
+                        winnerStr = "X has WON!";
+                    }
+                    else{
+                        winnerStr = "O has WON!";
+                    }
+                    //Updating the status bar for winner announcement
+                    status.setText(winnerStr);
+                    gameActive = false;
+                    return;
+                }
+            }
+
+            //Draw condition
+            gameActive = false;
+            for(int ch : gameState){
+                if(ch == 2) {
+                    gameActive= true;
+                    break;
+                }
+            }
+            if(!gameActive)
+                status.setText("Game Drawn!");
+        }
+    }
+
+    public void gameReset(View view){
+        gameActive = true;
+        activePlayer = 1;
+        Arrays.fill(gameState, 2);
+        TextView status = findViewById(R.id.status);
+        status.setText(R.string.X_turn);
+        ((ImageView)findViewById(R.id.imageView1)).setImageResource(0);
+        ((ImageView)findViewById(R.id.imageView2)).setImageResource(0);
+        ((ImageView)findViewById(R.id.imageView3)).setImageResource(0);
+        ((ImageView)findViewById(R.id.imageView4)).setImageResource(0);
+        ((ImageView)findViewById(R.id.imageView5)).setImageResource(0);
+        ((ImageView)findViewById(R.id.imageView6)).setImageResource(0);
+        ((ImageView)findViewById(R.id.imageView7)).setImageResource(0);
+        ((ImageView)findViewById(R.id.imageView8)).setImageResource(0);
+        ((ImageView)findViewById(R.id.imageView9)).setImageResource(0);
+    }
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+    }
+}
+ */