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  1. package com.example.testpreference;
  2.  
  3.  
  4. import android.app.Activity;
  5. import android.content.SharedPreferences;
  6. import android.os.Bundle;
  7. import android.view.View;
  8. import android.widget.Button;
  9. import android.widget.TextView;
  10.  
  11. public class TestPreferenceActivity extends Activity {
  12. /** Called when the activity is first created. */
  13.  
  14. private TextView myDateTimeView;
  15. private Button myShowDate;
  16.  
  17.  
  18. @Override
  19. public void onCreate(Bundle savedInstanceState) {
  20. super.onCreate(savedInstanceState);
  21. setContentView(R.layout.main);
  22.  
  23. myDateTimeView = (TextView)findViewById(R.id.textview);
  24. myShowDate = (Button)findViewById(R.id.button);
  25. myDateTimeView.setTextSize(30);
  26. myShowDate.setTextSize(20);
  27.  
  28.  
  29. myShowDate.setOnClickListener(new View.OnClickListener() {
  30. public void onClick(View v) {
  31. showCurrentDate();
  32.  
  33. }
  34. });
  35.  
  36. showCurrentDate();
  37. }
  38. public void setdata(){
  39. float X = 1.5F;
  40. SharedPreferences pref =getSharedPreferences("TestPreferenceActivity",MODE_WORLD_READABLE|MODE_WORLD_WRITEABLE);
  41. SharedPreferences.Editor editor = pref.edit();
  42. editor.putFloat("xaxis", X);
  43. editor.commit();
  44. }
  45. private void showCurrentDate(){
  46. SharedPreferences pref =getSharedPreferences("TestPreferenceActivity",MODE_WORLD_READABLE|MODE_WORLD_WRITEABLE);
  47. float x_axis = pref.getFloat("xaxis", 0F);
  48. String Xdata = String.valueOf( x_axis );
  49.  
  50. myDateTimeView.setText( Xdata);
  51. }
  52. }
  53.  
Compilation error #stdin compilation error #stdout 0s 0KB
stdin
Standard input is empty
compilation info
Main.java:11: class TestPreferenceActivity is public, should be declared in a file named TestPreferenceActivity.java
public class TestPreferenceActivity extends Activity {
       ^
Main.java:4: package android.app does not exist
import android.app.Activity;
                  ^
Main.java:5: package android.content does not exist
import android.content.SharedPreferences;
                      ^
Main.java:6: package android.os does not exist
import android.os.Bundle;
                 ^
Main.java:7: package android.view does not exist
import android.view.View;
                   ^
Main.java:8: package android.widget does not exist
import android.widget.Button;
                     ^
Main.java:9: package android.widget does not exist
import android.widget.TextView;
                     ^
Main.java:11: cannot find symbol
symbol: class Activity
public class TestPreferenceActivity extends Activity {
                                            ^
Main.java:14: cannot find symbol
symbol  : class TextView
location: class com.example.testpreference.TestPreferenceActivity
    private TextView myDateTimeView;
            ^
Main.java:15: cannot find symbol
symbol  : class Button
location: class com.example.testpreference.TestPreferenceActivity
    private Button myShowDate;
            ^
Main.java:19: cannot find symbol
symbol  : class Bundle
location: class com.example.testpreference.TestPreferenceActivity
    public void onCreate(Bundle savedInstanceState) {
                         ^
Main.java:20: cannot find symbol
symbol  : variable super
location: class com.example.testpreference.TestPreferenceActivity
        super.onCreate(savedInstanceState);
        ^
Main.java:21: package R does not exist
        setContentView(R.layout.main);
                        ^
Main.java:23: cannot find symbol
symbol  : class TextView
location: class com.example.testpreference.TestPreferenceActivity
        myDateTimeView  = (TextView)findViewById(R.id.textview);
                           ^
Main.java:23: package R does not exist
        myDateTimeView  = (TextView)findViewById(R.id.textview);
                                                  ^
Main.java:24: cannot find symbol
symbol  : class Button
location: class com.example.testpreference.TestPreferenceActivity
        myShowDate = (Button)findViewById(R.id.button);
                      ^
Main.java:24: package R does not exist
        myShowDate = (Button)findViewById(R.id.button);
                                           ^
Main.java:29: package View does not exist
        myShowDate.setOnClickListener(new View.OnClickListener() {
                                              ^
Main.java:18: method does not override or implement a method from a supertype
    @Override
    ^
Main.java:40: cannot find symbol
symbol  : class SharedPreferences
location: class com.example.testpreference.TestPreferenceActivity
	SharedPreferences pref =getSharedPreferences("TestPreferenceActivity",MODE_WORLD_READABLE|MODE_WORLD_WRITEABLE);
	^
Main.java:40: cannot find symbol
symbol  : variable MODE_WORLD_READABLE
location: class com.example.testpreference.TestPreferenceActivity
	SharedPreferences pref =getSharedPreferences("TestPreferenceActivity",MODE_WORLD_READABLE|MODE_WORLD_WRITEABLE);
	                                                                      ^
Main.java:40: cannot find symbol
symbol  : variable MODE_WORLD_WRITEABLE
location: class com.example.testpreference.TestPreferenceActivity
	SharedPreferences pref =getSharedPreferences("TestPreferenceActivity",MODE_WORLD_READABLE|MODE_WORLD_WRITEABLE);
	                                                                                          ^
Main.java:40: cannot find symbol
symbol  : method getSharedPreferences(java.lang.String,boolean)
location: class com.example.testpreference.TestPreferenceActivity
	SharedPreferences pref =getSharedPreferences("TestPreferenceActivity",MODE_WORLD_READABLE|MODE_WORLD_WRITEABLE);
	                        ^
Main.java:41: package SharedPreferences does not exist
	SharedPreferences.Editor editor = pref.edit();
	                 ^
Main.java:46: cannot find symbol
symbol  : class SharedPreferences
location: class com.example.testpreference.TestPreferenceActivity
    	SharedPreferences pref =getSharedPreferences("TestPreferenceActivity",MODE_WORLD_READABLE|MODE_WORLD_WRITEABLE);
    	^
Main.java:46: cannot find symbol
symbol  : variable MODE_WORLD_READABLE
location: class com.example.testpreference.TestPreferenceActivity
    	SharedPreferences pref =getSharedPreferences("TestPreferenceActivity",MODE_WORLD_READABLE|MODE_WORLD_WRITEABLE);
    	                                                                      ^
Main.java:46: cannot find symbol
symbol  : variable MODE_WORLD_WRITEABLE
location: class com.example.testpreference.TestPreferenceActivity
    	SharedPreferences pref =getSharedPreferences("TestPreferenceActivity",MODE_WORLD_READABLE|MODE_WORLD_WRITEABLE);
    	                                                                                          ^
Main.java:46: cannot find symbol
symbol  : method getSharedPreferences(java.lang.String,boolean)
location: class com.example.testpreference.TestPreferenceActivity
    	SharedPreferences pref =getSharedPreferences("TestPreferenceActivity",MODE_WORLD_READABLE|MODE_WORLD_WRITEABLE);
    	                        ^
28 errors
stdout
Standard output is empty