wrapper classes,collection frmework,generics

7/26/2019 Wrapper Classes,Collection Frmework,Generics

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Wrapper Classes, Collection Framework, Generics Programs

Wrapper Classes Programes:-

package wrapperclasses;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

public class bte! "

#$$

$ %aut&or 'aks&man

$

$#

public static void main(String)* args+ t&rows IOException "

BufferedReader br,new BufferedReader(newInputStreamReader(Sstem.in++;

Sstem.out.println(-enter t&e bte no-+;

String s!,br.read'ine(+;

Bte b!,new Bte(s!+;

Sstem.out.println(-enter t&e bte no-+;

String s/,br.read'ine(+;

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Bte b/,new Bte(s/+;

int n,b!.compare0o(b/+;

if (n,,1+

Sstem.out.println(-bot& btes are same-+;

else if(n21+Sstem.out.println(b!3 -is less-+;

else Sstem.out.println(b/3 -is less-+;

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public class c&aracter! "

#$$

$ %aut&or 'aks&man

$

$#

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c&ar c&;

BufferedReader br,new BufferedReader(newInputStreamReader(Sstem.in++;

w&ile(true+"

Sstem.out.println(-enter a c&ar-+;

c&,(c&ar+br.read(+;

Sstem.out.println(-u enetered-+;

if (5&aracter.is6igit(c&++

Sstem.out.println(-a digit-+;

else if(5&aracter.is7pper5ase(c&++

Sstem.out.println(-an uppercase letter-+;

else if(5&aracter.is'ower5ase(c&++

Sstem.out.println(-an lowercase letter-+;

else if(5&aracter.isSpace5&ar(c&++

Sstem.out.println(-an spacebar c&ar-+;

else if(5&aracter.is8&itespace(c&++"

Sstem.out.println(-an w&itespace c&ar-+;

return;

4

else

Sstem.out.println(-sorr9 i dn:t know t&at enter ke-+;

br.skip(/+;

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public class convertions "

#$$

$ %aut&or 'aks&man

$

$#


BufferedReader br,new BufferedReader(new

InputStreamReader(Sstem.in++;

Sstem.out.println(-enter a integer-+;

String str,br.read'ine(+;

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int i,Integer.parseInt(str+;

Sstem.out.println(-in decimal-3i+;

str,Integer.toBinarString(i+;

Sstem.out.println(-in binar-3str+;

str,Integer.toexString(i+;

Sstem.out.println(-in &exdecimal-3str+;

str,Integer.toOctalString(i+;

Sstem.out.println(-in octal-3str+;

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packagewrapperclasses;

publicclassrandomno "

#$$

$ @author'aks&man$

$#publicstaticvoidmain(String)* args+ throwsInterruptedException "

Sstem.out.println(-random no:s b#w 1 to !1-+;while(true+"

doubled,!1$


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Collection Framework Programes:-

packagecollections;

importjava.util.$;

publicclasslinkedlist! "#$$

$ @author'aks&man$

$#

publicstaticvoidmain(String)* args+ "

'inked'ist ll,new'inked'ist (+;Sstem.out.println (-5O=0E=0S O> l! , -3ll+;

Sstem.out.println(-SI?E , -3ll.si@e (++;

ll.add(new Integer(!1++; ll.add (new Integer (/1++;

ll.add (new Integer (A1++; ll.add (new Integer (1++;

Sstem.out.println (-5O=0E=0S O> ll , -3ll+; Sstem.out.println (-SI?E , -3ll.si@e (++;

## retrieving data of ll using toCrra (+ Object obj )*,ll.toCrra (+;

ints,1; for(inti,1; i2obj.lengt&; i33+

" Integer io, (Integer+ obj )i*;

intx,io.intDalue (+; s,s3x;

4

Sstem.out.println (-S7< 7SI= toCrra (+ , -3s+;

ll.add>irst (new Integer (F++; ll.add>irst (new Integer (G++;

Sstem.out.println (-5O=0E=0S O> ll , -3ll+; Sstem.out.println (-SI?E , -3ll.si@e (++;

## retrieving data of ll using iterator (+ Iterator itr,ll.iterator (+;

ints!,1; while(itr.&as=ext (++

" Object obj!,itr.next (+;

Integer io!, (Integer+ obj!; intx!,io!.intDalue (+;

s!,s!3x!; 4

Sstem.out.println (-S7< 7SI= iterator (+ , -3s!+;

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44

package collections;

##staticall add variables to -as&map- class obj;

##0&is program aut&orlaks&man date!1=ov/1!!

import java.util.$;

class as&map

"

#$$

$ %aut&or 'aks&man

$

$#

public static void main (String )* args+

"

as& &m , -3&m.si@e (++;

&m.put (new Integer (!1+9 new >loat(!/H.Hf++;

&m.put (new Integer (!+9 new >loat(!A.HAf++;

&m.put (new Integer (!11+9 new >loat(HH.Jf++;

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Sstem.out.println (-5O=0E=0S O> &m , -3&m+;

Sstem.out.println (-SI?E O> &m , -3&m.si@e (++;

Set s,&m.entrSet (+;

Iterator itr,s.iterator (+;

w&ile (itr.&as=ext (++

"


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#$$

$ %aut&or 'aks&man

$

$#

public static void main(String args)*+"

as&


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import java.util.$;

class as&set

"

#$$

$ %aut&or 'aks&man

$

$#


"

as&Set &s,new as&Set (+;

Sstem.out.println (-5O=0E=0S O> &s , -3&s+;

Sstem.out.println (-SI?E O> &s , -3&s.si@e (++;

&s.add (new Integer (!++;

&s.add (new Integer (!JJ++;

&s.add (new Integer (L!++;

&s.add (new Integer (/1++;

&s.add (new Integer (/11++;

&s.add (new Integer (!++;

Sstem.out.println (-5O=0E=0S O> &s , -3&s+;

Sstem.out.println (-SI?E O> &s , -3&s.si@e (++;

Iterator itr,&s.iterator (+;

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"

Object obj,itr.next (+;

Sstem.out.println (obj+;

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##staticall add variables to -as&set- class obj;


import java.util.Iterator;

import java.util.0reeSet;

public class 0set "

#$$

$ %aut&or 'aks&man

$

$#

public static void main(String)* args+ "

## 0O6O CutoLgenerated met&od stub

0reeSet ts,new 0reeSet (+;

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Sstem.out.println (-5O=0E=0S O> ts , -3ts+;

Sstem.out.println (-SI?E O> ts , -3ts.si@e (++;

ts.add (new Integer (!++;

ts.add (new Integer (!JJ++;

ts.add (new Integer (L!++;

ts.add (new Integer (/1++;

ts.add (new Integer (/11++;

ts.add (new Integer (!++;

Sstem.out.println (-5O=0E=0S O> ts , -3ts+;

Sstem.out.println (-SI?E O> ts , -3ts.si@e (++;

Iterator itr,ts.iterator (+;


"

Object obj,itr.next (+;

Sstem.out.println (obj+;

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##staticall add variables to -0reemap- class obj;


import java.util.$;

class 0reemap

"

#$$

$ %aut&or 'aks&man

$

$#


"

0ree tm , -3tm.si@e (++;

tm.put (new Integer (!1+9 new >loat(!/H.Hf++;

tm.put (new Integer (!+9 new >loat(!A.HAf++;

tm.put (new Integer (!11+9 new >loat(HH.Jf++;

Sstem.out.println (-5O=0E=0S O> tm , -3tm+;

Sstem.out.println (-SI?E O> tm , -3tm.si@e (++;

Set s,tm.entrSet (+;

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Iterator itr,s.iterator (+;


"


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"

Dector v,new Dector (+;

v.addElement (new Integer (!1++;

v.addElement (new >loat (!11.Af++;

v.addElement (new Boolean (true++;

v.addElement (-'aks&man-+;

Sstem.out.println (-SI?E , -3v.si@e (++;

Sstem.out.println (-5O=0E=0S , -3v+;

Enumeration en,v.elements(+;

w&ile (en.&as


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##staticall add variables to -&as&table- class obj;


import java.util.$;

class &as&table

"

#$$

$ %aut&or 'aks&man

$

$#


"

as&table &t,new as&table (+;

&t.put (-C-9-d-+;

&t.put (-Orissa-9-B&uvanes&war-+;

&t.put (-Karnatake-9-Bng-+;

&t.put (-0=-9-5&ennai-+;

&t.put (-Bi&ar-9-atna-+;

Sstem.out.println (&t+;

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Enumeration en,&t.kes (+;

w&ile (en.&as


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packagecollections;

importjava.util.$;publicclassDector6emo "

#$$

$ @author'aks&man$

$#publicstaticvoidmain(String args)*+ "

Dector2StringM v!,newDector2StringM(+;

v!.add(-raju-+;v!.add(-ravi-+;v!.add(-sita-+;

v!.add(-geet&a-+;Sstem.out.println(-si@e is -3v!.si@e(++;

#$for(int i,1;i2v!.si@e(+;i33+"##Sstem.out.println(-vector values are -3v!+;

String s,v!.elementCt(i+;4$#

##en&anced for loop

for(String sv!+"Sstem.out.println(s+;

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Generics Programes:-

packagegenerics;

#$$$ @author'aks&man

$$#

classgen20M "

0 obj;

gen(0 obj+"this.obj,obj;

4

0 getobj(+"

returnobj;4

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4classgen!"

publicstaticvoidmain(String)* args+ "

Integer i,!/;##same as Integer i,new Integer(!/+;

gen2IntegerM obj,newgen2IntegerM(i+; Sstem.out.println(-u stored -3obj.getobj(++;

>loat f,!/.!/Af;##same as >loat i,new >loat(!/.!/Af+;

gen2>loatM obj!,newgen2>loatM(f+; Sstem.out.println(-u stored -3obj!.getobj(++;

gen2StringM obj/,newgen2StringM(-ai


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packagegenerics;#$$

$ @author'aks&man$

$#

interface>ruit20M "voidtell0aste(0 fruit+;

4

classCn>ruit20M implements>ruit20M"

publicvoidtell0aste(0 fruit+"

String fruitname,fruit.get5lass(+.get=ame(+;

if(fruitname.eNuals(-Banana-++

Sstem.out.println(-Banana is sweet-+;

elseif(fruitname.eNuals(-orange-++;Sstem.out.println(-orange is sour-+;

4 4

classBanana"

4classOrange

"

4

classen"publicstaticvoidmain(String args)*+"

Banana b,newBanana(+;Cn>ruit2BananaM fruit!,newCn>ruit2BananaM(+;

fruit!.tell0aste(b+;

Orange o,newOrange(+;

Cn>ruit2OrangeM fruit/,newCn>ruit2OrangeM(+;fruit/.tell0aste(o+;

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packagegenerics;


$$#

importjava.util.as&table;

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publicclasst! "

#$$$ @paramargs

$#publicstaticvoidmain(String)* args+ "

## T!CutoLgenerated met&od stub

as&table &t,newas&table(+;## &ere not taken generic tpe

&t.put(-laxman-9 new Integer(1++;##auto boxing is not done &ere&t.put(-sac&in-9 new Integer(F1++;

&t.put(-d&oni-9 new Integer(G1++;

String s,-sac&in-; Integer score,(Integer+&t.get(s+;##&ere tpe casing is done

Sstem.out.println(-score,-3score+;

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packagegenerics;


$$#

importjava.util.as&table;

publicclasst/ "

publicstaticvoidmain(String)* args+ "## T!CutoLgenerated met&od stub

as&table2String9IntegerM &t,newas&table2String9IntegerM(+;## &ere

taken generic tpe

&t.put(-laks&man-9 1+;##auto boxing is done &ere&t.put(-sac&in-9 F1+;

&t.put(-d&oni-9 G1+;

String s,-sac&in-;

Integer score,&t.get(s+;##no tpe casing &ere

Sstem.out.println(-score,-3score+;4

4

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wrapper classes,collection frmework,generics

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