java英文(第八版)十三章答案优选 .pdfVIP

importjava.util.Scanner;

publicclassExercisel3_2{

publicstaticvoidmain(String[]args){

Seannerinput=newSeanner(System.in);

booleandone=false;

intnumberl=0;

intnumber2=0;

//Entertwointegers

「；

System.out.printEntertwointegers:)

while(!done){

try{

numberl=input,nextlnt();

number2=input.nextlnt();

done=true;

}

catch(Exceptionex){

1H

System.out.printCIncorrectinputandre-entertwointegers:);input.nextLi

ne();//Discardinput

}

}

11

System.out.println(”Sumis+(numberl+number2));

}

}publicclassExercisel3_4

{

publicstaticvoidmain(String[]args){

try{

newNewLoan⑺5,30,100000);

NewLoanm=newNewLoa3,3);

newNewLoan(7.5,30,20000);}

catch(Exceptionex)

{

System.out.println(ex);

}

11

System.out.println(”Endofprogram);

}

}

classNewLoan{

privatedoubleannuallnterestRate;

privateintnumOfYears;

privatedoubleloanAmount;

/**Defaultconstructor*/

publicNewLoanf){

this(7.5,30,100000);

}

讦

/**ConstructaNewLoanwithspeciedannualinterestrate,numberofyearsand

loanamount

*/

publicNewLoan(doubleannuallnterestRate,intnumOfYears,

doubleloanAmount){

if(annuallnterestRate=0)

「H

thrownewlllegalArgumentExceptionAnnualinterestratemustbepositive.);

讦(numOfYears=0)

HH

thrownewlllegalArgumentException(Numberofyearsmustbepositive.);