Bhavani Tutorials: August 2017

Cloning example

class Customer implements Cloneable{

int id;
String name;
int age;
long phone;

String dno;
String street;
String town;
int pincode;

Customer(int id, String name,int age, long phone, String dno, String street, String town,int pincode)
{
this.id= id;
this.name=name;
this.age=age;
this.phone=phone;
this.dno= dno;
this.street= street;
this.town=town;
this.pincode=pincode;
}

void show(){
System.out.println(id+" "+name+" "+age+" "+phone);
System.out.println("ADDRESS :"+ dno+" "+street+" "+town+" "+pincode);
System.out.println("***********************************");
}
public Object clone() throws CloneNotSupportedException
{
if(this instanceof Cloneable){
Customer cus= new Customer(this.id, this.name,this.age,this.phone,this.dno,this.street,this.town,this.pincode);
return cus;
}
else throw new CloneNotSupportedException(getClass().getName());
}}

public class Test{
public static void main(String args[]) throws CloneNotSupportedException{
Customer cus1=new Customer(10,"sri",10,81438900L,"20/789","Ramalaya street","hyd",521001);
Customer cus2=(Customer)cus1.clone();

System.out.println(cus1==cus2);
cus1.show();
cus2.show();

cus2.name="bhavani";

cus1.show();
cus2.show();

}}

BUBBLE SORT IN JAVA

class Test{

static void bubblesort(int arr[]) {
int temp=0;

for(int i=0;i<arr.length;i++) {
for(int j=1;j<arr.length-1;j++) {

if(arr[j]> arr[j+1])
{
temp= arr[j];
arr[j]= arr[j+1];
arr[j+1] = temp;
}
}}

}

public static void main(String args[]){

int arr[]= { 2,6,10,8,150,7,99};

for(int X:arr)
System.out.print(X+" ");

bubblesort(arr);

System.out.println("\n"+"AFTER SORTING");

for(int Y:arr)
{
System.out.print(Y+" ");
}

}

}

String Reversal by word by word

import java.util.*;
class StringintoWords{
public static void main(String args[]){

Scanner sc= new Scanner(System.in);
String str= sc.nextLine();

String words[] = str.split(" ");
String reversal="";

for(int i=0;i<words.length;i++)
{
String word= words[i];

String rev_word="";
for(int j=word.length()-1; j>0;j--)
{
rev_word=rev_word+word.charAt(j);
}

reversal=reversal+rev_word+" ";
}

System.out.println(reversal);
}}

PATTERN PROGRAMS LIST

PLEASE CLICK THE BELOW LINKS TO SEE DIFFERENT JAVA PATTERNS

PATTERN 24

import java.util.*;

class Pattern_24{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c,blnk=0;

char ch='*';

for(r=n;r>=1;r--)

{

for(blnk=n-1;blnk>=r;blnk--)

{

System.out.print(" ");

}

for(c=1;c<=n;c++)

{

if(r==1 || r==n || c==1 || c==n) System.out.print(ch);

else System.out.print(" ");

}

System.out.println();

}

}}

PATTERN 23

import java.util.*;

class Pattern_23{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c,blnk=0;

char ch='*';

for(r=1;r<=n;r++)

{

for(blnk=n-1;blnk>=r;blnk--)

{

System.out.print(" ");

}

for(c=1;c<=n;c++)

{

if(r==1 || r==n || c==1 || c==n) System.out.print(ch);

else System.out.print(" ");

}

System.out.println();

}

}}

PATTERN 22

import java.util.*;

class Pattern_22{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c,blnk=0;

char ch='*';

for(r=n;r>=1;r--)

{

for(blnk=n-1; blnk>=r;blnk--)

{

System.out.print(" ");

}

for(c=1;c<=2*r-1;c++)

{

if(r==n || c==1 || c== (2*r-1)) System.out.print(ch);

else System.out.print(" ");

}

System.out.println();

}

}}

PATTERN 21

import java.util.*;

class Pattern_21{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c,blnk=0;

char ch='*';

for(r=1;r<=n;r++)

{

for(blnk=n-1; blnk>=r;blnk--)

{

System.out.print(" ");

}

for(c=1;c<=2*r-1;c++)

{

if(r==n || c==1 || c== (2*r-1)) System.out.print(ch);

else System.out.print(" ");

}

System.out.println();

}

}}

PATTERN 20

import java.util.*;

class Pattern_20{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c,blnk=0;

char ch='*';

for(r=n;r>=1;r--)

{

for(blnk=n-1;blnk>=r;blnk--)

{

System.out.print(" ");

}

for(c=1;c<=r;c++)

{

if(c==1 ||c==r|| r==n ) System.out.print(ch);

else System.out.print(" ");

}

System.out.println();

}

}}

PATTERN 19

import java.util.*;

class Pattern_19{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c,blnk=0;

char ch='*';

for(r=1;r<=n;r++)

{

for(blnk=n-1;blnk>=r;blnk--)

{

System.out.print(" ");

}

for(c=1;c<=r;c++)

{

if(c==1 ||c==r|| r==n ) System.out.print(ch);

else System.out.print(" ");

}

System.out.println();

}

}}

PATTERN 18

import java.util.*;

class Pattern_18{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c=0;

char ch='*';

for(r=n;r>=1;r--)

{

for(c=1;c<=r;c++)

{

if(c==1 ||c==r|| r==n ) System.out.print(ch);

else System.out.print(" ");

}

System.out.println();

}

}}

PATTERN 17

import java.util.*;

class Pattern_17{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c=0;

char ch='*';

for(r=1;r<=n;r++)

{

for(c=1;c<=r;c++)

{

if(c==1 ||c==r|| r==n ) System.out.print(ch);

else System.out.print(" ");

}

System.out.println();

}

}}

PATTERN 16

import java.util.*;

class Pattern_16{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c=0;

char ch='*';

for(r=1;r<=n;r++)

{

for(c=1;c<=n;c++)

{

if(r==1 || r==n || c==1 || c==n) System.out.print(ch);

else System.out.print(" ");

}

System.out.println();

}

}}

PATTERN 15

import java.util.*;

class Pattern_15{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c,blnk=0;

char ch='*';

for(r=n;r>=1;r--)

{

for(blnk=n-1;blnk>=r;blnk--)

{

System.out.print(" ");

}

for(c=1;c<=n;c++)

{

System.out.print(ch);

}

System.out.println();

}

}}

PATTERN 14

import java.util.*;

class Pattern_14{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c,blnk=0;

char ch='*';

for(r=1;r<=n;r++)

{

for(blnk=n-1;blnk>=r;blnk--)

{

System.out.print(" ");

}

for(c=1;c<=n;c++)

{

System.out.print(ch);

}

System.out.println();

}

}}

PATTERN 13

import java.util.*;

class Pattern_13{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c,blnk=0;

char ch='*';

for(r=n;r>=1;r--)

{

for(blnk=n-1;blnk>=r;blnk--)

{

System.out.print(" ");

}

for(c=1;c<=r;c++)

{

System.out.print(ch);

}

System.out.println();

}

}}

PATTERN 12

import java.util.*;

class Pattern_12{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c,blnk=0;

char ch='*';

for(r=1;r<=n;r++)

{

for(blnk=n-1;blnk>=r;blnk--)

{

System.out.print(" ");

}

for(c=1;c<=r;c++)

{

System.out.print(ch);

}

System.out.println();

}

}}

PATTERN 11

import java.util.*;

class Pattern_11{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c,blnk=0;

char ch='*';

for(r=n;r>=1;r--)

{

for(blnk=n-1; blnk>=r;blnk--)

{

System.out.print(" ");

}

for(c=1;c<=2*r-1;c++)

{

System.out.print(ch+" ");

}

System.out.println();

}

}}

PATTERN 10

import java.util.*;

class Pattern_10{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c,blnk=0;

char ch='*';

for(r=1;r<=n;r++)

{

for(blnk=n-1; blnk>=r;blnk--)

{

System.out.print(" ");

}

for(c=1;c<=2*r-1;c++)

{

System.out.print(ch+" ");

}

System.out.println();

}

}}

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PLEASE CLICK THE BELOW LINKS TO SEE DIFFERENT JAVA PATTERNS