题库 软件开发 题目列表 下列程序有错误的是?(  )
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下列程序有错误的是?(  )

A.
abstract class Something {
private abstract String doSomething ();
}
B.
public class Something {
void doSomething () {
private String s = "";
int l = s.length();
}
}
C.
abstract class Name {
private String name;
public abstract boolean isSomething(String name){};
}
D.
public class Something {
public static void main(String[] args) {
Thing t = new Thing();
new Something().addOne(t);
}
public void addOne(final Thing t) {
t.i++;
}
}
class Thing {
public int i;
}
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