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  1. package com.example.helloworld;
  2.  
  3.  
  4.  
  5. import android.os.Bundle;
  6.  
  7. import android.app.Activity;
  8.  
  9. import android.view.Menu;
  10.  
  11.  
  12.  
  13. public class MainActivity extends Activity {
  14.  
  15.  
  16.  
  17. @Override
  18.  
  19. protected void onCreate(Bundle savedInstanceState) {
  20.  
  21. super.onCreate(savedInstanceState);
  22.  
  23. setContentView(R.layout.activity_main);
  24.  
  25. }
  26.  
  27.  
  28.  
  29. @Override
  30.  
  31. public boolean onCreateOptionsMenu(Menu menu) {
  32.  
  33. // Inflate the menu; this adds items to the action bar if it is present.
  34.  
  35. getMenuInflater().inflate(R.menu.main, menu);
  36.  
  37. return true;
  38.  
  39. }
  40.  
  41.  
  42.  
  43. }
  44.  
  45.  
Compilation error #stdin compilation error #stdout 0s 0KB
stdin
Standard input is empty
compilation info
Main.java:13: error: class MainActivity is public, should be declared in a file named MainActivity.java
public class MainActivity extends Activity {
       ^
Main.java:5: error: package android.os does not exist
import android.os.Bundle;
                 ^
Main.java:7: error: package android.app does not exist
import android.app.Activity;
                  ^
Main.java:9: error: package android.view does not exist
import android.view.Menu;
                   ^
Main.java:13: error: cannot find symbol
public class MainActivity extends Activity {
                                  ^
  symbol: class Activity
Main.java:19: error: cannot find symbol
	protected void onCreate(Bundle savedInstanceState) {
	                        ^
  symbol:   class Bundle
  location: class MainActivity
Main.java:31: error: cannot find symbol
	public boolean onCreateOptionsMenu(Menu menu) {
	                                   ^
  symbol:   class Menu
  location: class MainActivity
Main.java:21: error: cannot find symbol
		super.onCreate(savedInstanceState);
		^
  symbol:   variable super
  location: class MainActivity
Main.java:23: error: package R does not exist
		setContentView(R.layout.activity_main);
		                ^
Main.java:17: error: method does not override or implement a method from a supertype
    @Override
    ^
Main.java:35: error: package R does not exist
		getMenuInflater().inflate(R.menu.main, menu);
		                           ^
Main.java:35: error: cannot find symbol
		getMenuInflater().inflate(R.menu.main, menu);
		^
  symbol:   method getMenuInflater()
  location: class MainActivity
Main.java:29: error: method does not override or implement a method from a supertype
	@Override
	^
13 errors
stdout
Standard output is empty