This is a beta version of Practice-It. Give us feedback

logo Practice-It logo

Main Page → Problems → Solve a Problem

FogSleetRainSnow

Author: Marty Stepp (on 2020/11/06)

Assuming that the following classes have been defined: 

public class Fog extends Sleet {
    public void method1() {
        System.out.println("Fog 1");
    }

    public void method3() {
        System.out.println("Fog 3");
    }
}

public class Rain extends Snow {
    public void method1() {
        System.out.println("Rain 1");
    }

    public void method2() {
        System.out.println("Rain 2");
    }
}

public class Sleet extends Snow {
    public void method2() {
        System.out.println("Sleet 2");
        super.method2();
        method3();
    }

    public void method3() {
        System.out.println("Sleet 3");
    }
}

public class Snow {
    public void method2() {
        System.out.println("Snow 2");
    }

    public void method3() {
        System.out.println("Snow 3");
    }
}

And assuming the following variables have been defined: 

Snow var1 = new Sleet();
Rain var2 = new Rain();
Snow var3 = new Fog();
Object var4 = new Snow();
Sleet var5 = new Fog();
Snow var6 = new Rain();

In the table below, indicate in the right-hand column the output produced by the statement in the left-hand column. If the statement produces more than one line of output, indicate the line breaks with slashes as in "a/b/c" to indicate three lines of output with "a" followed by "b" followed by "c". If the statement causes an error, fill in the right-hand column with either the phrase "compiler error" or "runtime error" to indicate when the error would be detected (you may abbreviate these as "ce" and "re" or "c.e." and "r.e.").

var1.method1();
var2.method1();
var1.method2();
var2.method2();
var3.method2();
var4.method2();
var5.method2();
var1.method3();
var2.method3();
var3.method3();
var4.method3();
var5.method3();
((Rain)var4).method1();
((Fog)var5).method1();
((Sleet)var3).method1();
((Sleet)var3).method3();
((Fog)var6).method3();
((Snow)var4).method2();
((Sleet)var4).method3();
((Rain)var6).method3();

You must log in before you can solve this problem.


Log In

If you do not understand how to solve a problem or why your solution doesn't work, please contact your TA or instructor.
If something seems wrong with the site (errors, slow performance, incorrect problems/tests, etc.), please

Is there a problem? Contact a site administrator.