这个代码中@Override public class HelloActivity extends Activity {/** Called when the activity is first created.*/@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);TextView tv = new TextView(this);tv.set
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![这个代码中@Override public class HelloActivity extends Activity {/** Called when the activity is first created.*/@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);TextView tv = new TextView(this);tv.set](/uploads/image/z/14631864-24-4.jpg?t=%E8%BF%99%E4%B8%AA%E4%BB%A3%E7%A0%81%E4%B8%AD%40Override+public+class+HelloActivity+extends+Activity+%7B%2F%2A%2A+Called+when+the+activity+is+first+created.%2A%2F%40Overridepublic+void+onCreate%28Bundle+savedInstanceState%29+%7Bsuper.onCreate%28savedInstanceState%29%3BTextView+tv+%3D+new+TextView%28this%29%3Btv.set)
这个代码中@Override public class HelloActivity extends Activity {/** Called when the activity is first created.*/@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);TextView tv = new TextView(this);tv.set
这个代码中@Override
public class HelloActivity extends Activity {
/** Called when the activity is first created.*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
TextView tv = new TextView(this);
tv.setText("Hello,World!");
this.setContentView(tv);
}
这个代码中@Override public class HelloActivity extends Activity {/** Called when the activity is first created.*/@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);TextView tv = new TextView(this);tv.set
@Override表示重写(也叫覆盖).是Java新规范里面的一个注解应用,也就是注释了,告诉你这个方法是重写了父类的一个方法.