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POClassCastException using SharedPreferences
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copied!<p>The compiler is throwing ClassCastException: String cannot cast be to an int on line 96 of the below. I cannot for the life of me figure out why, and any help would be really appericiated. </p> <p>code:</p> <pre><code>public class Progress extends Activity { private TextView names, current, goal, start; private EditText updateBox; private ProgressBar progress; private String currentWeight, goalS, startS; private int currentWeightInt, weightUpdate; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_progress); SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this); String name = preferences.getString("name", "You need to create a profile first!"); names = (TextView) findViewById(R.id.noProf); names.setText("Welcome back " + name); start = (TextView) findViewById(R.id.start); startS = preferences.getString("start", ""); start.setText("Start:" + startS); current = (TextView) findViewById(R.id.currently); currentWeight = preferences.getString("current", ""); currentWeightInt = Integer.parseInt(currentWeight); current.setText("currently " + currentWeight); goal = (TextView) findViewById(R.id.goal); goalS = preferences.getString("goal", " "); goal.setText("goal: " + goalS); progress = (ProgressBar) findViewById(R.id.progressBar1); } public void update(View view) { updateBox = (EditText) findViewById(R.id.updateWeight); if (updateBox.getText().toString().matches(" ")) { Toast.makeText(this, "Please enter a weight", Toast.LENGTH_LONG).show(); } else { weightUpdate = Integer.parseInt(updateBox.getText().toString()); if (weightUpdate > currentWeightInt) { weightGain(); Toast.makeText(this, "weight gain", Toast.LENGTH_LONG).show(); } else if (weightUpdate < currentWeightInt) { Toast.makeText(this, "weight loss", Toast.LENGTH_LONG).show(); weightLoss(); } else { Toast.makeText(this, "stayed the same", Toast.LENGTH_LONG).show(); } } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.progress, menu); return true; } private void weightGain() { if (weightUpdate > currentWeightInt) { SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this); SharedPreferences.Editor editor = preferences.edit(); editor.putString("current", Integer.toString(weightUpdate)); editor.commit(); } } private void weightLoss() { if (weightUpdate < currentWeightInt) { SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this); int toSet = preferences.getInt("progress",0); progress.setProgress(toSet); SharedPreferences.Editor editor = preferences.edit(); editor.putString("current", Integer.toString(weightUpdate)); editor.commit(); double first = (Double.parseDouble(startS) - Double .parseDouble(currentWeight)); double second = (Double.parseDouble(startS) - Double .parseDouble(goalS)); double last = first / second; double result = last * 100; int resultInt = (int) result; progress.setProgress(resultInt); editor.putInt("progress", resultInt); editor.commit(); Intent refresh = new Intent(this, Progress.class); startActivity(refresh); this.finish(); } } </code></pre> <p>}</p> <p>Stack trace: </p> <pre><code> 08-17 18:44:25.565: D/qdmemalloc(11781): ion: Mapped buffer base:0x6c501000 size:8355840 offset:0 fd:56 08-17 18:44:25.565: D/qdmemalloc(11781): ion: Mapped buffer base:0x67680000 size:4096 offset:0 fd:57 08-17 18:44:28.418: D/qdmemalloc(11781): ion: Mapped buffer base:0x6cd09000 size:8355840 offset:0 fd:58 08-17 18:44:28.418: D/qdmemalloc(11781): ion: Mapped buffer base:0x67b33000 size:4096 offset:0 fd:59 08-17 18:44:29.459: I/InputMethodManager(11781): windowGainedFocus, mServedView=android.widget.EditText{4188f960 VFED..CL .F....ID 225,921-855,1039 #7f08001b app:id/updateWeight}, inputType=0x2, softInputMode=0x120, pid=11781 08-17 18:44:29.509: D/qdmemalloc(11781): ion: Mapped buffer base:0x6d668000 size:8355840 offset:0 fd:61 08-17 18:44:29.509: D/qdmemalloc(11781): ion: Mapped buffer base:0x67cca000 size:4096 offset:0 fd:62 08-17 18:44:29.529: D/qdmemalloc(11781): ion: Unmapping buffer base:0x6bbe9000 size:8355840 08-17 18:44:29.529: D/qdmemalloc(11781): ion: Unmapping buffer base:0x6720d000 size:4096 08-17 18:44:29.529: D/qdmemalloc(11781): ion: Unmapping buffer base:0x6c501000 size:8355840 08-17 18:44:29.529: D/qdmemalloc(11781): ion: Unmapping buffer base:0x67680000 size:4096 08-17 18:44:29.529: D/qdmemalloc(11781): ion: Unmapping buffer base:0x6cd09000 size:8355840 08-17 18:44:29.529: D/qdmemalloc(11781): ion: Unmapping buffer base:0x67b33000 size:4096 08-17 18:44:29.980: D/qdmemalloc(11781): ion: Mapped buffer base:0x6bbe9000 size:8355840 offset:0 fd:54 08-17 18:44:29.980: D/qdmemalloc(11781): ion: Mapped buffer base:0x6720d000 size:4096 offset:0 fd:56 08-17 18:44:30.270: D/qdmemalloc(11781): ion: Mapped buffer base:0x6c501000 size:8355840 offset:0 fd:57 08-17 18:44:30.270: D/qdmemalloc(11781): ion: Mapped buffer base:0x67680000 size:4096 offset:0 fd:58 08-17 18:44:35.976: W/dalvikvm(11781): threadid=1: thread exiting with uncaught exception (group=0x413feba0) 08-17 18:44:36.006: E/AndroidRuntime(11781): FATAL EXCEPTION: main 08-17 18:44:36.006: E/AndroidRuntime(11781): java.lang.IllegalStateException: Could not execute method of the activity 08-17 18:44:36.006: E/AndroidRuntime(11781): at android.view.View$1.onClick(View.java:3626) 08-17 18:44:36.006: E/AndroidRuntime(11781): at android.view.View.performClick(View.java:4231) 08-17 18:44:36.006: E/AndroidRuntime(11781): at android.view.View$PerformClick.run(View.java:17537) 08-17 18:44:36.006: E/AndroidRuntime(11781): at android.os.Handler.handleCallback(Handler.java:725) 08-17 18:44:36.006: E/AndroidRuntime(11781): at android.os.Handler.dispatchMessage(Handler.java:92) 08-17 18:44:36.006: E/AndroidRuntime(11781): at android.os.Looper.loop(Looper.java:158) 08-17 18:44:36.006: E/AndroidRuntime(11781): at android.app.ActivityThread.main(ActivityThread.java:5777) 08-17 18:44:36.006: E/AndroidRuntime(11781): at java.lang.reflect.Method.invokeNative(Native Method) 08-17 18:44:36.006: E/AndroidRuntime(11781): at java.lang.reflect.Method.invoke(Method.java:511) 08-17 18:44:36.006: E/AndroidRuntime(11781): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1083) 08-17 18:44:36.006: E/AndroidRuntime(11781): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:850) 08-17 18:44:36.006: E/AndroidRuntime(11781): at dalvik.system.NativeStart.main(Native Method) 08-17 18:44:36.006: E/AndroidRuntime(11781): Caused by: java.lang.reflect.InvocationTargetException 08-17 18:44:36.006: E/AndroidRuntime(11781): at java.lang.reflect.Method.invokeNative(Native Method) 08-17 18:44:36.006: E/AndroidRuntime(11781): at java.lang.reflect.Method.invoke(Method.java:511) 08-17 18:44:36.006: E/AndroidRuntime(11781): at android.view.View$1.onClick(View.java:3621) 08-17 18:44:36.006: E/AndroidRuntime(11781): ... 11 more 08-17 18:44:36.006: E/AndroidRuntime(11781): Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Integer 08-17 18:44:36.006: E/AndroidRuntime(11781): at android.app.SharedPreferencesImpl.getInt(SharedPreferencesImpl.java:240) 08-17 18:44:36.006: E/AndroidRuntime(11781): at com.example.smallchangebigloss.Progress.weightLoss(Progress.java:96) 08-17 18:44:36.006: E/AndroidRuntime(11781): at com.example.smallchangebigloss.Progress.update(Progress.java:63) 08-17 18:44:36.006: E/AndroidRuntime(11781): ... 14 more </code></pre>

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