JAVA
package com.example.rockpaperscissors;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.service.autofill.TextValueSanitizer;
import android.view.View;
import android.widget.TextView;

import java.util.Random;

public class MainActivity extends AppCompatActivity {
    String[] thisArray = {"Rock", "Paper", "Scissors"};
    TextView PlayerOne = findViewById(R.id.textplayer1);
    TextView PlayerTwo = findViewById(R.id.textplayer2);
    TextView Result = findViewById(R.id.result);


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void Randomize(View v){
        Random random = new Random();
        String RandomStrforP1 = thisArray[random.nextInt(thisArray.length)];
        String RandomStrforP2 = thisArray[random.nextInt(thisArray.length)];
        System.out.print(RandomStrforP1);
        PlayerOne.setText(RandomStrforP1);
        PlayerTwo.setText(RandomStrforP2);

        if (RandomStrforP1 == RandomStrforP2){
            Result.setText("Draw");
        }
        //p1 all win
        else if (RandomStrforP1 == "Rock" && RandomStrforP2 == "Scissors"){
            Result.setText("Rock beats Scissors, Player 1 Wins");
        }
        else if (RandomStrforP1 == "Paper" && RandomStrforP2 == "Rock"){
            Result.setText("Paper beats Rock, Player 1 Wins");
        }
        else if (RandomStrforP1 == "Scissor" && RandomStrforP2 == "Paper"){
            Result.setText("Scissor beats Paper, Player 1 Wins");
        }
        //p2 all win
        else if (RandomStrforP1 == "Scissors" && RandomStrforP2 == "Rock"){
            Result.setText("Rock beats Scissors, Player 2 Wins");
        }
        else if (RandomStrforP1 == "Rock" && RandomStrforP2 == "Paper"){
            Result.setText("Paper beats Rock, Player 2 Wins");
        }
        else if (RandomStrforP1 == "Paper" && RandomStrforP2 == "Scissor"){
            Result.setText("Scissor beats Paper, Player 2 Wins");
        }

    }
}

XML
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center"
tools:context=".MainActivity">

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="25dp"
    android:textAlignment="center"
    android:text="Player 1"/>

<TextView
    android:id="@+id/textplayer1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="25dp"
    android:textAlignment="center"
    android:text="Rock/Paper/Scissors"/>

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="25dp"
    android:textAlignment="center"
    android:text="Player 2"/>

<TextView
    android:id="@+id/textplayer2"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="25dp"
    android:textAlignment="center"
    android:text="Rock/Paper/Scissors"/>

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="25dp"
    android:textAlignment="center"
    android:text="Result"/>

<TextView
    android:id="@+id/result"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="25dp"
    android:textAlignment="center"
    android:text="Result Here"/>

<Button
    android:id="@+id/randomize"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginHorizontal="25dp"
    android:text="Random"
    android:onClick="Randomize"
    />


</LinearLayout>