错误一大堆,这样就可以了~~
abstract class addtwo {
public abstract void sumprint(int x, int y); }
public class addtwochild extends addtwo {
public void sumprint (int x, int y) {
int z;
z = x + y;
System.out.println(z);
}
public static void main(String[] args){
addtwo test = new addtwochild();
}
}
abstract class addtwo {
public abstract void sumprint(int x, int y); }
public class addtwochild extends addtwo {
public void sumprint (int x, int y) {
int z;
z = x + y;
System.out.println(z);
}
public static void main(String[] args){
addtwo test = new addtwochild();
}
}
解决方案 »
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