• 2022-06-16 问题

    数据库创建后,当数据库的版本号增加时调用()方法。 A: onCreate() B: super() C: MyHelper() D: onUpgrade()

    数据库创建后,当数据库的版本号增加时调用()方法。 A: onCreate() B: super() C: MyHelper() D: onUpgrade()

  • 2021-04-14 问题

    在A类的某个方法中,“super()”等价于( )。? super(self)|super|super(A,self)|super(A)

    在A类的某个方法中,“super()”等价于( )。? super(self)|super|super(A,self)|super(A)

  • 2022-05-29 问题

    下面是某Android项目MainActivity中加载Toolbar的程序片断,请根据注释在空白划线处填写合适的代码。public class MainActivity extends AppCompatActivity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);// 从布局中取得Toolbar组件Toolbar toolbar = (1)________________________;// 设置Toolbar替代ActionBar(2)_______________________;}}

    下面是某Android项目MainActivity中加载Toolbar的程序片断,请根据注释在空白划线处填写合适的代码。public class MainActivity extends AppCompatActivity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);// 从布局中取得Toolbar组件Toolbar toolbar = (1)________________________;// 设置Toolbar替代ActionBar(2)_______________________;}}

  • 2022-05-29 问题

    通过bindService方式开启服务,服务生命周期是()。 A: onCreate() onStart() onBind() onDestroy() B: onCreate() onBind() onDestroy() C: onCreate() onBind() onUnBind() onDestroy() D: onCreate() onStart() onBind() onUnBind() onDestroy()

    通过bindService方式开启服务,服务生命周期是()。 A: onCreate() onStart() onBind() onDestroy() B: onCreate() onBind() onDestroy() C: onCreate() onBind() onUnBind() onDestroy() D: onCreate() onStart() onBind() onUnBind() onDestroy()

  • 2022-05-29 问题

    如果通过bindService方式开启服务,那么服务的生命周期方法有()。 A: onCreate(),onBind(),onUnBind(),onDestroy() B: onCreate(),onStart(),onUnBind(),onDestroy() C: onCreate(),onBind(),onDestroy() D: onCreate(),onStart(),onBind(),onUnBind(),onDestroy()

    如果通过bindService方式开启服务,那么服务的生命周期方法有()。 A: onCreate(),onBind(),onUnBind(),onDestroy() B: onCreate(),onStart(),onUnBind(),onDestroy() C: onCreate(),onBind(),onDestroy() D: onCreate(),onStart(),onBind(),onUnBind(),onDestroy()

  • 2022-06-03 问题

    Context.startService方式的service生命周期下面正确的描述是( ) A: onCreate() –>;onStart() B: onStop()–>;onDestroy() C: onCreate()->;onStartCommand()->;onDestroy() D: onCreate()->;onBind()->;onUnBind()->;onDestroy()

    Context.startService方式的service生命周期下面正确的描述是( ) A: onCreate() –>;onStart() B: onStop()–>;onDestroy() C: onCreate()->;onStartCommand()->;onDestroy() D: onCreate()->;onBind()->;onUnBind()->;onDestroy()

  • 2022-06-15 问题

    Which two code fragments, inserted independently at line 12, will compile?() A: super(name, baseSalary); B: this.commission=commission; C: super();this.commission=commission; D: this.commission = commission;super(); E: super(name, baseSalary);this.commission=commission; F: this.commission=commission;super(name, baseSalary); G: super(name, baseSalary, commission);

    Which two code fragments, inserted independently at line 12, will compile?() A: super(name, baseSalary); B: this.commission=commission; C: super();this.commission=commission; D: this.commission = commission;super(); E: super(name, baseSalary);this.commission=commission; F: this.commission=commission;super(name, baseSalary); G: super(name, baseSalary, commission);

  • 2022-05-27 问题

    Super A: Super B: Idon’t C: I D: Admin

    Super A: Super B: Idon’t C: I D: Admin

  • 2022-05-29 问题

    如果使用bindService方式开启服务,那么服务的生命周期是____。 A: onCreate() -> onStart() -> onBind -> onDestroy() B: onCreate() -> onBind() -> onDestroy() C: onCreate() -> onBind() -> onUnbind() -> onDestroy() D: onCreate() -> onStart() -> onBind() -> onUnbind() -> onDestroy()

    如果使用bindService方式开启服务,那么服务的生命周期是____。 A: onCreate() -> onStart() -> onBind -> onDestroy() B: onCreate() -> onBind() -> onDestroy() C: onCreate() -> onBind() -> onUnbind() -> onDestroy() D: onCreate() -> onStart() -> onBind() -> onUnbind() -> onDestroy()

  • 2022-05-27 问题

    super

    super

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