Java Logical

 first largest number

import java.util.*;

class Abc {

public static void main(String[] args) {

int a[]= {10,20,44,1,5,8,99};

int max=0;

for(int i=0;i<a.length;i++)

{

if(a[i]>max)

{

max=a[i];

}

}

System.out.println(max);

}

}

second largest number

import java.util.*;

class Abc {

public static void main(String[] args) {

int a[]= {10,20,44,1,5,8,99};

int max=0,smax=0;

for(int i=0;i<a.length;i++)

{

if(a[i]>max)

{

max=a[i];

}

}

for(int i=0;i<a.length;i++)

{

if(a[i]!=max)

{

smax=Math.max(smax,a[i]);

}

}

System.out.println(smax);

}

}

remove duplicate in string

import java.util.*;

class Abc {

public static void main(String[] args) {

String a="sabarii";

String b="";

int i;

for(i=0;i<a.length();i++)

{

char c=a.charAt(i);

if(b.indexOf(c)==-1)

{

b=b+c;

}

}

System.out.println(b);

}

}

biggest word in string

import java.util.*;

class Abc {

public static void main(String[] args) {

String s = "Today is the happiest day of my life";

String s1[]=s.split(" ");

int max=0;

int j=0;

for (int i = 0; i < s1.length; i++)

{

if(s1[i].length()>max)

{

max=s1[i].length();

j=i;

}

}

System.out.println(s1[j]);

}

}

smallest word in string

import java.util.*;

class Abc {

public static void main(String[] args) {

String s = "Today is the happiest day of my life";

String s1[]=s.split(" ");

int min=s1[0].length();

int j=0;

for (int i = 0; i < s1.length; i++)

{

if(s1[i].length()<min)

{

min=s1[i].length();

j=i;

}

}

System.out.println(s1[j]);

}

}

dead lock example

import java.util.*;

class Abc {

public static void main(String[] args) {

Object lock1 = new Object();

Object lock2= new Object();

  Thread thread1 = new Thread(() -> {

            synchronized (lock1) {

                System.out.println("Thread 1 acquired lock1");

                try {

                    Thread.sleep(100);

                } catch (InterruptedException e) {

                    e.printStackTrace();

                }

                synchronized (lock2) {

                    System.out.println("abc");

                }

            }

        });

        // Thread 2

        Thread thread2 = new Thread(() -> {

            synchronized (lock2) {

                System.out.println("Thread 2 acquired lock2");

                try {

                    Thread.sleep(100);

                } catch (InterruptedException e) {

                    e.printStackTrace();

                }

                synchronized (lock1) {

                    System.out.println("hello");

                }

            }

        });

        // Start the threads

        thread1.start();

        thread2.start();

}

}

multidimentional array swapping

import java.util.*;

class Abc {

public static void swap(int [][]t,int a, int b,int c,int d) {

    int temp = t[a][b];

    t[a][b] = t[c][d];

    t[c][d] = temp;

}

public static void main(String[] args) {

int[][] arr = {{1}, {2}, {3}};

swap(arr,0,0,1,0);

System.out.println(arr[0][0]);

    

}

}