public class Test{ public void cal(int x，int y，int z){ } //在此处添加cal()的重载方法 }
问题1选项
A.public int cal(int x, int z){ }
B.public int cal(int x, int y, int z){ }
C.public int cal (int x，int y，int z) {return 0;}
D.public int cal(int x, int y, float z){return 0;}
