Java Codes Basic to Advance
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Publicaciones del Canal
Sabhi log arattai app install karlo
Hame apne desh ki app ko support karna chahiye
Vahi pe ek doosre se bat Karo whatsapp ki bajaye
Dheere dheere sare log whatsapp chhod ke arattai use karo
Isme aapko hamare sare arattai app me jo groups/channels hai aur honge vo milte rahenge 👇
https://aratt.ai/@ignoustudycenter
| 2 | Join BCA/MCA developers group on arattai
A Indian chat app by zoho Supported by government
https://chat.arattai.in/groups/t43545f313237373536333834333438343434363931355f32303030353533333235382d47437c3031303131353032353136343137353935303935383035393830 | 496 |
| 3 | New Bot
@VideoCompress0bot
Direct send your large size video to this bot and it will convert to small size
Warning: Don't send already compressed video or low quality video other wise it will increase those size instead decreasing | 557 |
| 4 | // Shows Indian Time
import java.time.*;
import java.time.format.DateTimeFormatter;
public class ISTTime {
public static void main(String[] args) {
// Get current time in IST
ZoneId istZone = ZoneId.of("Asia/Kolkata");
ZonedDateTime istTime = ZonedDateTime.now(istZone);
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd-MM-yyyy HH:mm:ss");
System.out.println("Time (IST): " + istTime.format(formatter));
}
}
// Output: | 585 |
| 5 | Join @LogicBots
For
Getting Updates of our bots
Sujjestion for new bot
Sujjestion for new features
https://t.me/logicBots | 526 |
| 6 | Sin texto... | 0 |
| 7 | Best time to buy /sell any stock
public class buysell {
public static int buySellStock(int prices[]) {
int MaxProfit = 0;
int buyPrice = Integer.MAX_VALUE;
for (int index = 0; index < prices.length; index++) {
if (buyPrice < prices[index]) {
int profit = prices[index] - buyPrice;
MaxProfit = Math.max(profit, MaxProfit);
} else {
buyPrice = prices[index];
}
}
return MaxProfit;
}
public static void main(String[] args) {
int prices[] = { 7, 1, 5, 6, 2, 3 };
System.out.println(buySellStock(prices));
}
}
Output:
5 | 526 |
| 8 | TrapRainWater Code time complexibilty O(n)
public class traprainwat {
public static int trapwater(int height[]) {
// left max
int n = height.length;
int leftMax[] = new int[n];
leftMax[0] = height[0];
for (int i = 1; i < n; i++) {
leftMax[i] = Math.max(height[i], leftMax[i - 1]);
}
// return leftMax;
// for (int i = 0; i < n; i++) {
// System.out.print(leftMax[i]);
// }
// right max
int rightMax[] = new int[n];
rightMax[n - 1] = height[n - 1];
for (int i = n - 2; i >= 0; i--) {
rightMax[i] = Math.max(rightMax[i + 1], height[i]);
}
// for (int i = 0; i < rightMax.length; i++) {
// System.out.print(rightMax[i]);
// }
// loop
int traprainw = 0;
for (int i = 0; i < n; i++) {
// waterlevel=min(leftmax,rightmax)
int waterlevel = Math.min(leftMax[i], rightMax[i]);
// traprainwater=waterlevel-height[i]
traprainw += waterlevel - height[i];
}
return traprainw;
}
public static void main(String[] args) {
int height[] = { 4, 2, 0, 6, 3, 2, 5 };
System.out.println(trapwater(height));
}
}
Output:
11 | 487 |
| 9 | Your Favorite language? | 445 |
| 10 | Maximum Subarray sum using Kadane's Algorithm.
import java.util.*;
public class Kadane {
public static void kaddanelgoSum(int numbers[]) {
int currsum = 0;
int maxsum = Integer.MIN_VALUE;
for (int index = 0; index < numbers.length; index++) {
currsum = currsum + numbers[index];
if (currsum < 0) {
currsum = 0;
}
// System.out.println(currsum);
// if (maxsum < currsum) {
// maxsum = currsum;
// }
maxsum = Math.max(currsum, maxsum);
}
System.out.println("max sum is : " + maxsum);
}
public static void main(String[] args) {
// int numbers[] = { 2, 3, 4, 5 };
int numbers[] = { -2, -3, 4, -1, -2, 1, 5, -3, };
kaddanelgoSum(numbers);
}
}
Output:
max sum is : 7 | 524 |
| 11 | Subarray
public class subArr {
public static void subArray(int numbers[]) {
for (int i = 0; i < numbers.length; i++) {
int start = i;
// subarr
for (int j = i; j < numbers.length; j++) {
int end = j;
// System.out.print(numbers[j]);
for (int k = start; k <= end; k++) {
System.out.print(+numbers[k] + " ");
}
System.out.println();
}
System.out.println();
}
}
public static void main(String[] args) {
int numbers[] = { 2, 4, 6, 8, 10 };
subArray(numbers);
}
}
Output:
2
2 4
2 4 6
2 4 6 8
2 4 6 8 10
4
4 6
4 6 8
4 6 8 10
6
6 8
6 8 10
8
8 10
10 | 445 |
| 12 | Reverse an array
public class reverseArr {
public static void reverse(int numbers[]) {
int start = 0;
int last = numbers.length - 1;
while (start < last) {
int temp = numbers[last];
numbers[last] = numbers[start];
numbers[start] = temp;
start++;
last--;
}
}
public static void main(String[] args) {
int numbers[] = { 2, 4, 6, 8, 10, 12, 14, 16 };
reverse(numbers);
for (int i = 0; i < numbers.length; i++) {
System.out.print(numbers[i] + " ");
}
}
}
// time complexbilty: 0(n)
// space complexbilty: 0(1)
Output:
16 14 12 10 8 6 4 2 | 369 |
| 13 | Diamond Pattern of number n
public class diamond {
public static void diamond_pattern(int n) {
for (int i = 1; i <= n; i++) {
// blank space
for (int j = 1; j <= (n - i); j++) {
System.out.print(" ");
}
// star
for (int j = 1; j <= 2 * (i - 1) + 1; j++) {
System.out.print("*");
}
System.out.println();
}
for (int i = n; i >= 1; i--) {
// blank space
for (int j = 1; j <= (n - i); j++) {
System.out.print(" ");
}
// star
for (int j = 1; j <= 2 * (i - 1) + 1; j++) {
System.out.print("*");
}
System.out.println();
}
}
public static void main(String[] args) {
diamond_pattern(5);
}
}
Output:
*
***
*****
*******
*********
*********
*******
*****
***
* | 494 |
| 14 | Hollow Rhombus Pattern for number n
public class hollowrhombus {
public static void hollowrhombus_pattern(int n) {
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= n - i; j++) {
System.out.print(" ");
}
for (int j = 1; j <= n; j++) {
if (i == 1 | i == n | j == 1 | j == n) {
System.out.print("*");
} else {
System.out.print(" ");
}
}
System.out.println();
}
}
public static void main(String[] args) {
hollowrhombus_pattern(5);
}
}
Output:
*****
* *
* *
* *
***** | 421 |
| 15 | Solid Rhombus Pattern for number n
public class solidrhomus {
public static void solidrhomus_pattern(int n) {
for (int i = 1; i <= n; i++) {
for (int index = 1; index <= 2 * (n - i); index++) {
System.out.print(" ");
}
for (int index = 1; index <= n; index++) {
System.out.print("* ");
}
System.out.println();
}
}
public static void main(String[] args) {
solidrhomus_pattern(5);
}
}
Output:
* * * * *
* * * * *
* * * * *
* * * * *
* * * * * | 390 |
| 16 | Butterfly Pattern using java of number n
public class Butterflypattern {
public static void butterfly_pattern(int n) {
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= i; j++) {
System.out.print("*");
}
for (int j = 1; j <= 2 * (n - i); j++) {
System.out.print(" ");
}
for (int index = 1; index <= i; index++) {
System.out.print("*");
}
System.out.println();
}
for (int i = n; i >= 1; i--) {
for (int j = 1; j <= i; j++) {
System.out.print("*");
}
for (int j = 1; j <= 2 * (n - i); j++) {
System.out.print(" ");
}
for (int index = 1; index <= i; index++) {
System.out.print("*");
}
System.out.println();
}
}
public static void main(String[] args) {
butterfly_pattern(5);
}
}
Output:
* *
** **
*** ***
**** ****
**********
**********
**** ****
*** ***
** **
* * | 335 |
| 17 | 0-1 Triangle Pattern
public class zeroone {
public static void zeroOne_Triangle(int n) {
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= i; j++) {
if ((i + j) % 2 == 0) {
System.out.print("1 ");
} else {
System.out.print("0 ");
}
}
System.out.println();
}
}
public static void main(String[] args) {
zeroOne_Triangle(5);
}
}
Output:
1
0 1
1 0 1
0 1 0 1
1 0 1 0 1 | 320 |
| 18 | Floyd`s Triangle Pattern.
public class floydtriangle {
public static void floyd(int n) {
int count = 1;
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= i; j++) {
System.out.print(count + " ");
count++;
}
System.out.println();
}
}
public static void main(String[] args) {
floyd(5);
}
}
OutPut:
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15 | 324 |
| 19 | Ai telegram chatbot creation project
https://youtu.be/s6EQACzmLII?si=pnDL8IdAPC7HSlJl | 397 |
| 20 | Sin texto... | 0 |
