TIPOS DE ESTRUCTURAS REPETITIVAS DE PROGRAMACION

 

package com.example.ciclos;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    EditText edtnum, edtcant;
    TextView tvres;
    Button btn;
    ImageButton btnsalir;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        edtnum = (EditText) findViewById(R.id.edtnum);
        edtcant = (EditText) findViewById(R.id.edtcant);
        tvres = (TextView) findViewById(R.id.tvres);
        btn = (Button) findViewById(R.id.btn);
        btnsalir = (ImageButton) findViewById(R.id.btnsalir);


        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {


                int num = Integer.valueOf(edtnum.getText().toString());
                int cant = Integer.valueOf(edtcant.getText().toString());
                String acum = "";
                for (int i = 1; i <= cant; i++) {
                    acum += String.format(edtnum.getText().toString() + "X" + i + "=" + (num * i) + "\n");
                }
                tvres.setText(acum);

            }
                
        });
        btnsalir.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                finish();
            }
        });

    }
    
}