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Questions and Exercises: Expressions, Statements, and Blocks - Java Tutorial 5.0 英文版

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Trail: Learning the Java Language
Lesson: Language Basics

Questions and Exercises: Expressions, Statements, and Blocks

Questions

1. What are the data types of the following expressions, assuming that i's type is int?

   i > 0
   i = 0
   i++
   (float)i
   i == 0
   "aString" + i
   

2. Consider the following expression.

   i--%5>0
   

   1. What is the result of the expression, assuming that the value of i is initially 10?
   2. Modify the expression so that it has the same result but is easier for programmers to read.

Exercises

1. Write a program to confirm your answers to Questions 2a and 2b.

Check your answers.

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