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class School{
String name; int n1;double n2;public void show(){System.out. println(name); System.out.println(n1); System out. println(n2); 了应个public class Al {public static void main(string[] args){IToDO Auto-generated method stub Schoolcenter=new School();center.show();center.name"信息工程学院”;center.n1=30;center.n2=50;center.show();Schoolcenten2=new School();