我有一个看起来像这样的 Java 程序。
public class LocalScreen {
public void onMake() {
aFuncCall(LocalScreen.this, oneString, twoString);
}
}
什么是LocalScreen.this意味着在aFuncCall?
LocalScreen.this指的是this封闭类的。
这个例子应该解释一下：
public class LocalScreen {
public void method() {
new Runnable() {
public void run() {
// Prints "An anonymous Runnable"
System.out.println(this.toString());
// Prints "A LocalScreen object"
System.out.println(LocalScreen.this.toString());
// Won't compile! 'this' is a Runnable!
onMake(this);
// Compiles! Refers to enclosing object
onMake(LocalScreen.this);
}
public String toString() {
return "An anonymous Runnable!";
}
}.run();
}
public String toString() { return "A LocalScreen object"; }
public void onMake(LocalScreen ls) { /* ... */ }
public static void main(String[] args) {
new LocalScreen().method();
}
}
Output:
An anonymous Runnable!
A LocalScreen object
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