JAVA파일에서 next11 버튼 부분을 없애면 중간에 꺼지지도 않고 작동이 됩니다.

하지만 firstview의 버튼중에 next11을 클릭하면 secondview가 출력되게 만들어야합니다.

하지만 next11에 대한 부분을 작성하고 실행시키면 중간에 꺼집니다.

main 액티비티에 대한 xml파일을 올리지 않겠습니다.

firstview.xml과 java파일을 올립니다.

초보적인 질문이지만 답변 부탁드립니다.

xml코드입니다.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <RelativeLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >

        <TextView
            android:id="@+id/oot"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_alignParentLeft="true"
            android:layout_alignParentTop="true"
            android:gravity="center"
            android:text="1번" />

        <RadioButton
            android:id="@+id/ooar"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oot"
            android:layout_alignParentTop="true"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/oot"
            android:text="a" />

        <RadioButton
            android:id="@+id/oobr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oot"
            android:layout_alignParentTop="true"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/ooar"
            android:text="b" />

        <RadioButton
            android:id="@+id/oocr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oot"
            android:layout_alignParentTop="true"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/oobr"
            android:text="c" />

        <RadioButton
            android:id="@+id/oodr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oot"
            android:layout_alignParentTop="true"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/oocr"
            android:text="d" />

        <TextView
            android:id="@+id/ott"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_alignParentLeft="true"
            android:layout_below="@+id/oot"
            android:gravity="center"
            android:text="2번" />

        <RadioButton
            android:id="@+id/otar"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/ott"
            android:layout_alignParentTop="@+id/ott"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/ott"
            android:text="a" />

        <RadioButton
            android:id="@+id/otbr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/ott"
            android:layout_alignParentTop="@+id/ott"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/otar"
            android:text="b" />

        <RadioButton
            android:id="@+id/otcr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/ott"
            android:layout_alignParentTop="@+id/ott"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/otbr"
            android:text="c" />

        <RadioButton
            android:id="@+id/otdr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/ott"
            android:layout_alignParentTop="@+id/ott"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/otcr"
            android:text="d" />

        <TextView
            android:id="@+id/otht"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_alignParentLeft="true"
            android:layout_below="@+id/ott"
            android:gravity="center"
            android:text="3번" />

        <RadioButton
            android:id="@+id/othar"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/otht"
            android:layout_alignParentTop="@+id/otht"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/otht"
            android:text="a" />

        <RadioButton
            android:id="@+id/othbr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/otht"
            android:layout_alignParentTop="@+id/otht"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/othar"
            android:text="b" />

        <RadioButton
            android:id="@+id/othcr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/otht"
            android:layout_alignParentTop="@+id/otht"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/othbr"
            android:text="c" />

        <RadioButton
            android:id="@+id/othdr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/otht"
            android:layout_alignParentTop="@+id/otht"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/othcr"
            android:text="d" />

        <TextView
            android:id="@+id/oft"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_alignParentLeft="true"
            android:layout_below="@+id/otht"
            android:gravity="center"
            android:text="4번" />
       
        <RadioButton
            android:id="@+id/ofar"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oft"
            android:layout_alignParentTop="@+id/oft"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/oft"
            android:text="a" />

        <RadioButton
            android:id="@+id/ofbr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oft"
            android:layout_alignParentTop="@+id/oft"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/ofar"
            android:text="b" />

        <RadioButton
            android:id="@+id/ofcr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oft"
            android:layout_alignParentTop="@+id/oft"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/ofbr"
            android:text="c" />

        <RadioButton
            android:id="@+id/ofr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oft"
            android:layout_alignParentTop="@+id/oft"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/ofcr"
            android:text="d" />

        <TextView
            android:id="@+id/ofit"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_alignParentLeft="true"
            android:layout_below="@+id/oft"
            android:gravity="center"
            android:text="5번" />
       
        <RadioButton
            android:id="@+id/ofiar"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/ofit"
            android:layout_alignParentTop="@+id/ofit"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/ofit"
            android:text="a" />

        <RadioButton
            android:id="@+id/ofibr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/ofit"
            android:layout_alignParentTop="@+id/ofit"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/ofiar"
            android:text="b" />

        <RadioButton
            android:id="@+id/oficr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/ofit"
            android:layout_alignParentTop="@+id/ofit"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/ofibr"
            android:text="c" />

        <RadioButton
            android:id="@+id/ofidr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/ofit"
            android:layout_alignParentTop="@+id/ofit"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/oficr"
            android:text="d" />

        <TextView
            android:id="@+id/ost"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_alignParentLeft="true"
            android:layout_below="@+id/ofit"
            android:gravity="center"
            android:text="6번" />
       
        <RadioButton
            android:id="@+id/osar"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/ost"
            android:layout_alignParentTop="@+id/ost"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/ost"
            android:text="a" />

        <RadioButton
            android:id="@+id/osbr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/ost"
            android:layout_alignParentTop="@+id/ost"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/osar"
            android:text="b" />

        <RadioButton
            android:id="@+id/oscr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/ost"
            android:layout_alignParentTop="@+id/ost"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/osbr"
            android:text="c" />

        <RadioButton
            android:id="@+id/osdr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/ost"
            android:layout_alignParentTop="@+id/ost"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/oscr"
            android:text="d" />

        <TextView
            android:id="@+id/oset"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_alignParentLeft="true"
            android:layout_below="@+id/ost"
            android:gravity="center"
            android:text="7번" />

        <RadioButton
            android:id="@+id/osear"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oset"
            android:layout_alignParentTop="@+id/oset"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/oset"
            android:text="a" />

        <RadioButton
            android:id="@+id/osebr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oset"
            android:layout_alignParentTop="@+id/oset"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/osear"
            android:text="b" />

        <RadioButton
            android:id="@+id/osecr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oset"
            android:layout_alignParentTop="@+id/oset"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/osebr"
            android:text="c" />

        <RadioButton
            android:id="@+id/osedr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oset"
            android:layout_alignParentTop="@+id/oset"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/osecr"
            android:text="d" />

        <TextView
            android:id="@+id/oet"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_alignParentLeft="true"
            android:layout_below="@+id/oset"
            android:gravity="center"
            android:text="8번" />
       
        <RadioButton
            android:id="@+id/oear"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oet"
            android:layout_alignParentTop="@+id/oet"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/oet"
            android:text="a" />

        <RadioButton
            android:id="@+id/oebr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oet"
            android:layout_alignParentTop="@+id/oet"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/oear"
            android:text="b" />

        <RadioButton
            android:id="@+id/oecr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oet"
            android:layout_alignParentTop="@+id/oet"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/oebr"
            android:text="c" />

        <RadioButton
            android:id="@+id/oedr"
            android:layout_width="48dp"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/oet"
            android:layout_alignParentTop="@+id/oet"
            android:layout_marginLeft="18dp"
            android:layout_toRightOf="@+id/oecr"
            android:text="d" />

        <Button
            android:id="@+id/save11"
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_alignParentLeft="true"
            android:gravity="center"
            android:text="저장하기" />

        <Button
            android:id="@+id/next11"
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_alignParentRight="true"
            android:gravity="center"
            android:text="다음페이지" />

    </RelativeLayout>

</LinearLayout>

java 파일

package com.example.scoringmachine;

import android.os.Bundle;
import android.view.LayoutInflater;
import android.widget.TextView;
import android.app.Activity;
import android.view.Menu;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.LinearLayout;
import android.content.Context;

public class MainActivity extends Activity {
 
 EditText etname;
 TextView select, oneonetv, onetwotv, onethreetv, onefourtv, onefivetv, onesixtv, oneseventv, oneeighttv, oneninetv, onetentv, onetwelvetv, onethirteentv, onefourteentv, onefifteentv, onesixteentv;
 Button first, second, third, fourth, fifth, oneonesave, oneonenext, next11, save11, next12, save12;
 RadioButton ooar, oobr, oocr, oodr, otar, otbr, otcr, otdr, othar, othbr, othcr, othdr, ofar, ofbr, ofcr, ofdr, offar, offbr, offcr, offdr, osar, osbr, oscr, osdr, osvar, osvbr, osvcr, osvdr, oear, oebr, oecr, oedr;
 RadioButton ont, onar, onbr, oncr, ondr, otet, otear, otebr, otecr, otedr, oelt, oelar, oelbr, oelcr, oeldr, otwt, otwar, otwbr, otwcr, otwdr, othit, othiar, othibr, othicr, othidr, ofot, ofoar, ofobr, ofocr, ofodr, ofift, ofifar, ofifbr, ofifcr, ofifdr, osit, osiar, osibr, osicr, osidr;
 String entername;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
       
        etname = (EditText)findViewById(R.id.name);
        entername = etname.getText().toString();
       
    first = (Button)findViewById(R.id.first);
    next11 = (Button)findViewById(R.id.next11);
   
    first.setOnClickListener(new View.OnClickListener() {
     public void onClick(View v) {
      setContentView(R.layout.firstview);
     }
    });     
    next11.setOnClickListener(new View.OnClickListener() {
     public void onClick(View v) {
      setContentView(R.layout.secondview);
     }
    });
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
}

인터넷에 찾아보니까 inflater를 사용해야 하는것 같던데 정확한 답변이랑

어떻게 해야 하는지 부탁드립니다.

감사합니다.