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Fire

Author: Stuart Reges (on 2014/02/13)

Assuming that the following classes have been defined: 

        public class Water extends Earth {
            public void method1() {
                System.out.println("Water 1");
            }
        
            public void method3() {
                System.out.println("Water 3");
            }
        }

        public class Fire {
            public void method1() {
                System.out.println("Fire 1");
            }

            public void method2() {
                System.out.println("Fire 2");
                method1();
            }
        }

        public class Earth extends Fire {
            public void method1() {
                System.out.println("Earth 1");
                super.method1();
            }
        }

        public class Air extends Fire {
            public void method3() {
                System.out.println("Air 3");
            }
        }

And assuming the following variables have been defined: 

        Fire var1 = new Water();
        Fire var2 = new Earth();
        Fire var3 = new Fire();
        Object var4 = new Earth();
        Earth var5 = new Water();
        Fire var6 = new Air();

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.

var1.method1();
var2.method1();
var3.method1();
var4.method1();
var5.method1();
var6.method1();
var1.method2();
var2.method2();
var3.method2();
var4.method2();
var5.method2();
var6.method2();
((Water)var4).method2();
((Fire)var4).method2();
((Air)var6).method3();
((Earth)var1).method3();
((Water)var1).method3();
((Water)var2).method3();
((Earth)var1).method2();
((Water)var6).method3();

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