variableoper.java

有一个接口,用抽象类实现它的部分功能,再用实现类继承抽象类,实现其它没实现的接口方法

package cn.edu.csu.programmer;

public class VariableOper{
  //游离块
  {
    int h = 101;
	System.out.println(h);
  }
  public VariableOper(){
    System.out.println("构造函数");
  }
  public void print(int j){
    int i = j;
	System.out.println(i + j);
  }
  public void println(int j){
    System.out.println(j);
  }
  public static  void main(String[] args){
    VariableOper vo = new VariableOper();
    GlobalVar gv = new GlobalVar();
	System.out.println(gv.getGlobalK());
  }
}
class GlobalVar{
  double k;
  public double getGlobalK(){
    return k;
  }
}