I am trying to display a winning message when score reach 45 on text view

Question

I am trying to display a winning message after the score reach 45 point. I have used OnClickListener to increase point and when the score reach 45 on text view i want to show a toast/pop up message.

public class Activity2 extends AppCompatActivity {
    
        TextView txtView1, txtView2, txt_point1, txt_point2;
        Button PointBtn, PointBtn2;
    
        int count1 = 0;
    
    
        public void scoreCount() {
            count1 = count1++ + 15;
    
        }
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_2);
    
    
            txt_point1 =(TextView) findViewById(R.id.pointView1);
            txt_point2 = (TextView) findViewById(R.id.pointView2);
            txtView1 = (TextView) findViewById(R.id.txtView1);
            txtView1.setText(getIntent().getStringExtra("player 1"));
    
            txtView2 = (TextView) findViewById(R.id.txtView2);
            txtView2.setText(getIntent().getStringExtra("player 2"));
    
            PointBtn = findViewById(R.id.BtnPlus1);
            PointBtn2 = findViewById(R.id.btnPlus2);
    
  
    
            PointBtn2.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    scoreCount();
                    txt_point2.setText( count1+ "love");
    
                    if (count1==45){
                        Toast.makeText(Activity2.this,
                                "Player " +getIntent().getStringExtra("player 1" + " has won"),
                                Toast.LENGTH_SHORT).show();
                    } else  {
    
                        Toast.makeText(Activity2.this, "You lose", Toast.LENGTH_SHORT).show();
                    }
                }
            });

Answer 1

You have wrong operators in the scoreCount() method. Don't use increment operator ++, it increments count1 by one and adds 15. Use just += operator:

public void scoreCount() {
    count1 += 15;
}

Answer 2

Actually by

public void scoreCount() {
    count1 = count1++ + 15;
}

you are incrementing the variable by 16 and not 15. So remove count1++ + 15 and make it count1 + 15. You may also use shorthand operator +=.

public void scoreCount() {
    count1 = count1 + 15;
}

OR

public void scoreCount() {
    count1 += 15;
}