Consider the following classes: Suppose the following variables are defined: Ind

Question

Consider the following classes:

Suppose the following variables are defined:

Indicate on each line below the output produced by each statement shown. 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, write the word error to indicate this.

var1.method1(); var2.method1(); var3.method1(); var4.method1(); var5.method1(); var6.method1(); var1.method2(); var2.method2(); var3.method2(); var4.method2(); var5.method2(); var6.method2(); var3.method3(); var5.method3(); ((Larry) var1).method1(); ((Mary) var2).method2(); ((Jerry) var5).method1(); ((Mary) var5).method3(); ((Jerry) var4).method3(); ((Mary) var6).method3();

Explanation / Answer

var1.method1();

harry 1

var2.method1();

larry 1 / harry 1

var3.method1();

larry 1 / harry 1

var4.method1();

larry 1 / harry 1

var5.method1();

larry 1 / harry 1

var6.method1();

The method method1() is undefined for the type Object

var1.method2();

harry 1 /harry 2

var2.method2();

larry 1 /harry 1 /harry 2

var3.method2();

mary 2 / jerry 2

var4.method2();

mary 2

var5.method2();

mary 2 /jerry 2

var6.method2();

The method method2() is undefined for the type Object

var3.method3();

The method method3() is undefined for the type Larry

var5.method3();

larry 1 /harry 1/mary 3

((Larry) var1).method1();

java.lang.ClassCastException: Harry cannot be cast to Larry

((Mary) var2).method2();

java.lang.ClassCastException: Larry cannot be cast to Mary

((Jerry) var5).method1();

larry 1 / harry 1

((Mary) var5).method3();

larry 1 /harry 1 /mary 3

((Jerry) var4).method3();

java.lang.ClassCastException: Mary cannot be cast to Jerry

((Mary) var6).method3();

java.lang.ClassCastException: Larry cannot be cast to Mary

var1.method1();

harry 1

var2.method1();

larry 1 / harry 1

var3.method1();

larry 1 / harry 1

var4.method1();

larry 1 / harry 1

var5.method1();

larry 1 / harry 1

var6.method1();

The method method1() is undefined for the type Object

var1.method2();

harry 1 /harry 2

var2.method2();

larry 1 /harry 1 /harry 2

var3.method2();

mary 2 / jerry 2

var4.method2();

mary 2

var5.method2();

mary 2 /jerry 2

var6.method2();

The method method2() is undefined for the type Object

var3.method3();

The method method3() is undefined for the type Larry

var5.method3();

larry 1 /harry 1/mary 3

((Larry) var1).method1();

java.lang.ClassCastException: Harry cannot be cast to Larry

((Mary) var2).method2();

java.lang.ClassCastException: Larry cannot be cast to Mary

((Jerry) var5).method1();

larry 1 / harry 1

((Mary) var5).method3();

larry 1 /harry 1 /mary 3

((Jerry) var4).method3();

java.lang.ClassCastException: Mary cannot be cast to Jerry

((Mary) var6).method3();

java.lang.ClassCastException: Larry cannot be cast to Mary

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