实验指导书:实验7-异常处理与异常类.docx
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1、如果您需要使用本文档,请点击下载按钮下载!实验7 异常处理与异常类一. 实验目的及实验环境 1理解Java异常的基本概念和处理机制。 2掌握Java异常处理的方法(抛出和捕获异常;try、throw、throws、catch语句和finally的用法) 3理解异常类的作用,掌握创建异常类的方法。二. 实验内容 1 基本内容(实验前请及时熟悉如下相关内容)1)Java的异常处理机制2)异常类的应用3)常见的异常(除数为零等)4)多异常处理5)由方法抛出异常6)必须要捕获的异常 2 综合实验:2.1 (Y. Daniel Liang英文版第10版P488:12.2* (InputMismatchE
2、xception) (Y. Daniel Liang英文版八版P456:13.2*) (NumberFormatException) Write a program that prompts the user to read two integers and displays their sum. Your program should prompt the user to read the number again if the input is incorrect.2.2 (Y. Daniel Liang英文版第10版P488:12.3* ) (Y. Daniel Liang英文版八版P4
3、56:13.3*) (ArrayIndexOutBoundsException) Write a program that meets the following requirements: Create an array with 100 randomly chosen integers. Prompt the user to enter the index of the array, then display the corresponding element value. If the specified index is out of bounds, display the messa
4、ge Out of Bounds.2.3 (Y. Daniel Liang英文版第10版P488:12.4* ) (Y. Daniel Liang英文版八版P456:13.4*) (IllegalArgumentException) Modify the Loan class in Listing 10.2 to throw IllegalArgumentException if the loan amount, interest rate, or number of years is less than or equal to zero.1 / 8如果您需要使用本文档,请点击下载按钮下载!2
5、.4 (Y. Daniel Liang英文版第10版P488:12.5* ) (Y. Daniel Liang英文版八版P456:13.5*) (IllegalTriangleException) Exercise 11.1 defined the Triangle class with three sides. In a triangle, the sum of any two sides is greater than the other side. The Triangle class must adhere to this rule. Create the IllegalTriangl
6、eException class, and modify the constructor of the Triangle class to throw an IllegalTriangleException object if a triangle is created with sides that violate the rule, as follows:/* Construct a triangle with the specified sides */public Triangle(double side1, double side2, double side3)throws Ille
7、galTriangleException / Implement it三、程序清单及结果:1,package 异常处理;import java.util.Scanner;public class text1 public static void main(String args) / TODO Auto-generated method stubint a,b;Scanner s=new Scanner(System.in);System.out.println(read two integers:);while(true)try a=s.nextInt();b=s.nextInt();Sys
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