super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
public int sum(int a, int b) {
return a + b;
}
public int substract(int a, int b) {
return b - a;
}
}
Package Name: com.android.testapp
Activity Name: MainActivity
Application Name: TestApp
以下是MainActivity的源代码:
package com.android.testapp;
import android.app.Activity;
import android.os.Bundle;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
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