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Which of the following assignment statements are legal. Mark each statement with an X for compile time illegal assignments, ? for assignments that might fail at run time and a check for assignments that will succeed at runtime.

Which of the following assignment statements are legal. Mark each statement with an X for compile time illegal assignments, ? for assignments that might fail at run time and a check for assignments that will succeed at runtime.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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2. legal case Start with the following declarations and definitions. abstract class A{ A() {} } class B extends A{ B() {}} A a; Bb = new B(); int i = 1; double d = 2; float f = 3; byte b2 = 4; Which of the following assignment statements are legal. Mark each statement with an X for compile time illegal assignments, ? for assignments that might fail at run time and a check for assignments that will succeed at runtime. a = b; b = a; b = (B)a; a = new A(); i = d; d = i; d = f; i = b2; b2 = i; b2 = (byte)i;
Transcribed Image Text:2. legal case Start with the following declarations and definitions. abstract class A{ A() {} } class B extends A{ B() {}} A a; Bb = new B(); int i = 1; double d = 2; float f = 3; byte b2 = 4; Which of the following assignment statements are legal. Mark each statement with an X for compile time illegal assignments, ? for assignments that might fail at run time and a check for assignments that will succeed at runtime. a = b; b = a; b = (B)a; a = new A(); i = d; d = i; d = f; i = b2; b2 = i; b2 = (byte)i;
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