模擬操作系統(tǒng)的請求分頁存儲管理java代碼

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寫出方案實現(xiàn)代碼

（1）page類

packagehomework;

publicclassPage{

privateintpagenumb;//頁號privateintphysicsnumb;//物理塊號privatebooleanstate;//狀態(tài)位privateintvisitcount;//訪問字段privatebooleanchange;//修改位privateintCRTaddress;//外存地址

publicPage(){this.pagenumb=-1;}

publicPage(intpagenumb,intphysicsnumb,booleanstate,int}

publicvoidsetPagenumb(intpagenumb){}

publicvoidsetPhysicsnumb(intphysicsnumb){}

publicvoidsetState(booleanstate){}

publicvoidsetVisitcount(intvisitcount){}

publicvoidsetChange(booleanchange){

this.change=change;

this.visitcount=visitcount;this.state=state;

this.physicsnumb=physicsnumb;this.pagenumb=pagenumb;this.pagenumb=pagenumb;this.physicsnumb=physicsnumb;this.state=state;

this.visitcount=visitcount;this.change=change;

this.CRTaddress=CRTaddress;this.physicsnumb=-1;this.state=false;this.visitcount=0;this.change=false;this.CRTaddress=-1;

visitcount,booleanchange,intCRTaddress){

}

}

publicvoidsetCRTaddress(intCRTaddress){}

publicintgetPagenumb(){}

publicintgetPhysicsnumb(){}

publicbooleangetState(){}

publicintgetVisitcount(){}

publicbooleangetChange(){}

publicintgetCRTaddress(){}

returnthis.CRTaddress;returnthis.change;returnthis.visitcount;returnthis.state;returnthis.physicsnumb;returnthis.pagenumb;this.CRTaddress=CRTaddress;

（2）Shell類：頁表packagehomework;

importjava.util.Scanner;

publicclassShell{

Pageshell[];privateintcurrent;privateintlength;publicShell(){};publicShell(intlength){}

publicvoidsetCurrent(intcurrent){this.current=current;}publicintgetCurrent(){returnthis.current;}publicintsearchpage(intpagenumb){

this.length=length;this.current=0;

shell=newPage[length];for(inti=0;i=this.length){}

elsereturn0;

return1;

Scannera=newScanner(System.in);switch(ch){

case\:{System.out.println(\請輸入一個新的數(shù)據(jù)\);}

case\:{}

default:{}}

System.out.println(\輸入字符有誤，將退出程序??！\);System.exit(0);break;

b[this.shell[number].getPhysicsnumb()]=a.nextInt();this.shell[number].setChange(true);System.out.println(\修改成功！\);break;

}

}

returnt;

publicintIschange(intnumber){}

publicvoidprintPageShell(){

System.out.println(i+\+this.shell[i].getPagenumb()+\+th