编辑代码

public class Computer{
    public Computer(){
        
    }
    public Computer(String inter,int ncun,int ypan){
        this.inter = inter;
        this.ncun = ncun;
        this.ypan = ypan;
    }
    public String info(){
        return "cpu" + inter +"内存" + ncun + "硬盘" + ypan;
    }
}
public class PC extends Computer{
    public PC(){

    }
    public PC(String ppai){
        this.ppai = ppai;
    }
    public String arrInt(){
        return .info() + "品牌" + ppai；
    }
}
class Text {
	public static void main(String[] args) {
        
		System.out.println("Hello world!   - java.jsrun.net ");
	}
}