TestNG - Can i use the 2 different data providers to same @test methods in TestNG?

public Object[][] dp1() {
  return new Object[][] {
      new Object[] { "a", "b" },
      new Object[] { "c", "d" },
  };
}

public Object[][] dp2() {
  return new Object[][] {
      new Object[] { "e", "f" },
      new Object[] { "g", "h" },
  };
}

@DataProvider
public Object[][] dp() {
  List<Object[]> result = Lists.newArrayList();
  result.addAll(Arrays.asList(dp1()));
  result.addAll(Arrays.asList(dp2()));
  return result.toArray(new Object[result.size()][]);
}

@Test(dataProvider = "dp")
public void f(String a, String b) {
  System.out.println("f " + a + " " + b);
}

Java - Duplicate chars in a String

  String str = "asdfasdfafk asd234asda";
    Map<Character, Integer> charMap = new HashMap<Character, Integer>();
    char[] arr = str.toCharArray();

    for (char value: arr) {

       if (Character.isAlphabetic(value)) {
           if (charMap.containsKey(value)) {
               charMap.put(value, charMap.get(value) + 1);

           } else {
               charMap.put(value, 1);
           }
       }
    }

    System.out.println(charMap);

Java - Two Max number in array

package programs;

public class TwoMaxNumbersInArray {


public void twoMaxNumbersInArray(int[] a){
int firstBigNumber = 0;
int secondBigNumber = 0;

for(int num:a){

if(firstBigNumber < num){
secondBigNumber = firstBigNumber;
firstBigNumber = num;
System.out.println("secondBigNumber:-"+secondBigNumber);
System.out.println("firstBigNumber:-"+firstBigNumber);
System.out.println("-------");

}
else if(secondBigNumber < num){
secondBigNumber = num;

System.out.println("secondBigNumber:-"+secondBigNumber);
System.out.println("*******");
}
}

System.out.println("firstBigNumber is:-"+firstBigNumber);
System.out.println("secondBigNumber is:-"+secondBigNumber);

}

    public static void main(String a[]){
        int num[] = {5,34,78,2,45,1,99,23};
        TwoMaxNumbersInArray obj = new TwoMaxNumbersInArray();
        obj.twoMaxNumbersInArray(num);
     
    }

}

Java - Sum of array

package programs;

import java.util.Arrays;

public class SumofArray1 {

public static void test() {
int[] arr = {1,2,3,4,5,6,7,8,9};
int sum =0;
for (int i : arr) {
sum =sum+i;
}
System.out.println(sum);
}
public static void repeatednumber() {
int[] arr = {10,2,2,3,5,5,6,8,8};

Arrays.sort(arr);
for (int i = 1; i < arr.length; i++) {
if (arr[i] == arr[i-1]) {
// System.out.println("Duplicate elements : "+ arr[i]);
} else {
System.out.println("---------------------------------");
System.out.println("Distinict Elements - "+ arr[i]);
}
}
}
public static void main(String[] args) {
// TODO Auto-generated method stub

repeatednumber();
}

}

Java - reverse Number in java

package programs;

import java.util.Scanner;

public class ReverseNumber {

public void reverseNumber(){

Scanner scn = new Scanner(System.in);

System.out.println("Enter number");

int number = scn.nextInt();

int reverse = 0;

while(number!=0){

reverse = reverse*10;

reverse = reverse + number%10;

number = number/10;

}

System.out.println("Reversed number is:-"+reverse);

}

public static void main(String[] args) {

ReverseNumber obj = new ReverseNumber();

obj.reverseNumber();

}

}

Pattern Programs in Java

package programs;

public class PatternProgram1 {

/**
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5 6 7

*/
public static void main(String[] args) {
for(int i =1;i<=7;i++){
for(int j =1; j<=i;j++){
System.out.print(j+" ");
}
System.out.println();
}
}
}

-------------------------------------------------------------------

package programs;

public class PatternProgram2 {

/**

1

2 2

3 3 3

4 4 4 4

5 5 5 5 5

6 6 6 6 6 6

7 7 7 7 7 7 7

 */

public static void main(String[] args) {

for(int i =1;i<=7;i++){

for(int j =1; j<=i;j++){

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

}

System.out.println();

}

}

}

----------------------------------------------------------------------

package programs;

public class PatternProgram3 {

/**

1

1 2

1 2 3

1 2 3 4

1 2 3 4 5

1 2 3 4 5 6

1 2 3 4 5 6 7

1 2 3 4 5 6

1 2 3 4 5

1 2 3 4

1 2 3

1 2

1

 */

public static void main(String[] args) {

for(int i =1; i<=7;i++){

for(int j =1; j<=i;j++){

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

}

System.out.println();

}

for(int i=6;i>=1;i--){

for(int j =1; j<=i;j++){

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

}

System.out.println();

}

}

}

---------------------------------------------------------------------

package programs;

import java.util.Scanner;

public class PatternProgram5 {

/**

1 2 3 4 5 6 7

1 2 3 4 5 6

1 2 3 4 5

1 2 3 4

1 2 3

1 2

1

 */

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

System.out.println("enter input data");

int number = scanner.nextInt();

for(int i=number;i>=1; i--){

for(int j = 1; j<=i;j++){

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

}

System.out.println();

}

}

}

-----------------------------------------------------------------------

package programs;

import java.util.Scanner;

public class PatternProgram6{

/**

7 6 5 4 3 2 1

7 6 5 4 3 2

7 6 5 4 3

7 6 5 4

7 6 5

7 6

7

 */

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

System.out.println("enter input data");

int number = scanner.nextInt();

for(int i =1; i<=number;i++){

for(int j = number; j>=i;j--){

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

}

System.out.println();

}

}

}

--------------------------------------------------------------------------

package programs;

public class PatternProgram7 {

/**

1 2 3 4 5 6 7

1 2 3 4 5 6

1 2 3 4 5

1 2 3 4

1 2 3

1 2

1

1 2

1 2 3

1 2 3 4

1 2 3 4 5

1 2 3 4 5 6

1 2 3 4 5 6 7

*/

public static void main(String[] args) {

for(int i =7; i>=1; i--){

for(int j =1 ; j<=i; j++){

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

}

System.out.println();

}

for(int k = 2; k<=7; k++){

for(int j =1 ; j<=k; j++){

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

}

System.out.println();

}

}

}

----------------------------------------------------------------------

package programs;

public class PatternProgram8 {

/**

1

1 2 1

1 2 3 2 1

1 2 3 4 3 2 1

1 2 3 4 5 4 3 2 1

1 2 3 4 5 6 5 4 3 2 1

1 2 3 4 5 6 7 6 5 4 3 2 1

*/

public static void main(String[] args) {

for(int i = 1; i<=7; i++){

for(int j = 1; j<=i; j++){

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

}

for(int j = i-1; j>=1; j--){

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

}

System.out.println();

}

}

}

------------------------------------------------------------------------