【填空题】读下面程序 写出程序运行结果。 class Father { int num1=0; public Father（){ System.ou
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【填空题】读下面程序,写出程序运行结果。 class Father { int num1=0; public Father（){ System.out.println（"num1:"+num1);} public Father（int num1){ this.num1=num1; System.out.println（"num1:"+num1); } } class Son extends Father{ int num2=10; public Son（){System.out.println（"num2:"+num2);} public Son（int i,int j){ super（i); num2=j; System.out.println（"num1:"+num1+",num2:"+num2); } } public class Demo{ public static void main（String []args){ Father father=new Father（); S
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