Belajar Radiogroup dan checkbox

Activity Diagaram

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    tools:context=".MainActivity">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toTopOf="parent"
        android:text="FORM INPUT"
        android:textAlignment="center"
        android:textSize="30dp"
        android:background="@color/purple_500"
        android:textColor="@color/white"
        />
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_constraintTop_toTopOf="parent"
        android:layout_marginTop="50dp"
        android:orientation="vertical"
        >

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="NO.ID"
            app:layout_constraintTop_toTopOf="@+id/txtTime"
            android:layout_marginTop="5dp"
            />

        <EditText
            android:id="@+id/txtId"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="INPUT NO ID"
            android:inputType="number"
            />

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="NAMA"
            app:layout_constraintTop_toTopOf="@+id/txtId"
            android:layout_marginTop="5dp"
            />

        <EditText
            android:id="@+id/txtNama"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="INPUT NAMA"
            android:inputType="text"
            />

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="EMAIL"
            app:layout_constraintTop_toTopOf="@+id/txtNama"
            android:layout_marginTop="5dp"
            />

        <EditText
            android:id="@+id/txtEmail"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="INPUT EMAIL"
            android:inputType="textEmailAddress"
            />

    </LinearLayout>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Hobi"
        app:layout_constraintTop_toTopOf="parent"
        android:layout_marginTop="260dp"
        />
    <LinearLayout
        android:id="@+id/lnHobi"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toTopOf="parent"
        android:layout_marginTop="280dp">
    <CheckBox
        android:id="@+id/chcSilat"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Silat"/>


    <CheckBox
        android:id="@+id/chcKarate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Karate"/>

    </LinearLayout>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Jenis Kelamin"
        app:layout_constraintTop_toTopOf="parent"
        android:layout_marginTop="330dp"
        />
    <RadioGroup
        android:id="@+id/rgJk"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toTopOf="parent"
        android:layout_marginTop="350dp"
        android:orientation="horizontal">

        <RadioButton
            android:id="@+id/rdLaki"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Laki-Laki"/>


        <RadioButton
            android:id="@+id/rdPerempuan"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Perempuan"/>
    </RadioGroup>
    
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="SIMPAN"
        app:layout_constraintTop_toTopOf="@id/rgJk"
        android:layout_marginTop="50dp"
        android:textSize="20dp"
        android:onClick="simpan"
        tools:ignore="OnClick" />
    <TextView
        android:id="@+id/lblId"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="ID"
        android:textSize="20dp"
        app:layout_constraintTop_toTopOf="parent"
        android:layout_marginTop="480dp"/>

    <TextView
        android:id="@+id/lblNama"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="NAMA"
        android:textSize="20dp"
        app:layout_constraintTop_toTopOf="@+id/lblId"
        android:layout_marginTop="40dp"/>

    <TextView
        android:id="@+id/lblEmail"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="EMAIL"
        android:textSize="20dp"
        app:layout_constraintTop_toTopOf="@+id/lblNama"
        android:layout_marginTop="40dp"/>

    <TextView
        android:id="@+id/lblHobi"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="HOBI"
        android:textSize="20dp"
        app:layout_constraintTop_toTopOf="@+id/lblEmail"
        android:layout_marginTop="40dp"/>


    <TextView
        android:id="@+id/lblJk"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Jenis Kelamin"
        android:textSize="20dp"
        app:layout_constraintTop_toTopOf="@+id/lblHobi"
        android:layout_marginTop="40dp"/>

    
</androidx.constraintlayout.widget.ConstraintLayout>

Main Activity;

package com.example.rpl1;

import androidx.appcompat.app.AppCompatActivity;

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

public class MainActivity extends AppCompatActivity {

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

    public void simpan(View view) {
        EditText No = findViewById(R.id.txtNo);
        TextView setNO = findViewById(R.id.lblNO);
        EditText Nama = findViewById(R.id.txtNama);
        TextView setNama = findViewById(R.id.lblNama);
        EditText Email = findViewById(R.id.txtEmail);
        TextView setEmail = findViewById(R.id.lblEmail);
        TextView setJK = findViewById(R.id.lblJK);
        CheckBox Silat = findViewById(R.id.chcSilat);
        TextView setSilat = findViewById(R.id.lblHobi);
        CheckBox Karate = findViewById(R.id.chcKarate);
        TextView setKarate = findViewById(R.id.lblHobi);
        CheckBox Hapkido = findViewById(R.id.chcHapkido);
        TextView setHapkido = findViewById(R.id.lblHobi);
        RadioGroup JK = findViewById(R.id.rdJK);


        int jk = JK.getCheckedRadioButtonId();
        Button Gender = findViewById(jk);
        String gender = Gender.getText().toString();
        String getNama = Nama.getText().toString();
        String getNo = No.getText().toString();
        String getEmail = Email.getText().toString();
        String getSilat = Silat.getText().toString();
        String getKarate = Karate.getText().toString();
        String getHapkido = Hapkido.getText().toString();

        setNama.setText(getNama);
        setNO.setText(getNo);
        setEmail.setText(getEmail);
        setJK.setText(gender);
        setSilat.setText(getSilat);
        setKarate.setText(getKarate);
        setHapkido.setText(getHapkido);
    }
}

 

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