public class Example1 
{ 
public print() 
{ 
System.out.print("這是父類的print方法"); 
} 
public Study() 
{ 
System.out.print("這是父類Study方法"); 
} 
public Work() 
{ 
System.out.print("這是父類Work方法"); 
} 

} 
子類如下：
public class Example2 extends Example1
{ 
public print() 
{ 
System.out.print("這是子類中的print方法"); 
} 
public Study() 
{ 
System.out.print("這是子類中的Study方法"); 
} 
public static void main(String args[])
{
     Example2 ex=new Example2();
     ex.print();
     ex.Study();
     ex.Work();
}
}