[Solved] Null Pointer access: This variable dt_str can only be null

Actually no clue what exactly you wanted to achieve with your code, since several variables are undefinied (dateString and s for example). Also is the array m[] definied in a wrong way (double ” within the data part) – however, I “fixed” your code with the given information: String[] m = {“01”, “02”, “03”}; String[] … Read more

[Solved] I am trying to implement a buublesort using a custom made compare method but i always keep getting ArrayIndexOutOfBound Exception [duplicate]

The main problem is these lines: int val = t.compare(arr[j – 1], arr[j]); System.out.println(val); if (val > 1) t.swap(arr[j – 1], arr[j]); Since your compare and swap methods actually take array indices, these should be: int val = t.compare(j – 1, j); System.out.println(val); if (val > 0) t.swap(j – 1, j); Otherwise, you are using … Read more

[Solved] How to properly use findBySomeOtherId not findById in Spring data jpa?

Please use this InterviewStatus findByInterviewId(Interviews interviewId); where interviewId is gotten by running Interviews findById(Long id). Due to the datatype conflict, it is ok that you pass in as parameter the expected datatype. so it is expecting Interviews not Integer, but you have integer. in this case, you get Interviews using the integer then pass the … Read more

[Solved] Get all subarrays from an array using a single loop

#include <stdio.h> int main() { int myArray[] = {0,1,2,3}; int myArrayLength = sizeof(myArray)/sizeof(*myArray); int i, j; for(j=i=0;i<myArrayLength;++i){ printf(“(%d,%d)”, myArray[j], myArray[i]); if(i == myArrayLength -1){ i = j++;//++j – 1; printf(“\n”); } } return 0; } 5 solved Get all subarrays from an array using a single loop

[Solved] How to reverse a string without changing the position of the words [closed]

Your problem is that you’re asking it to print the whole string repeatedly in this line: System.out.print(arr[j]+” “);. Changing that to print only an individual character will fix it: public class roughWork { public static void main(String[] args) { String str= “Test the product”; String arr[]=str.split(” “); for(int i=0;i<arr.length;i++) { for(int j=arr[i].length()-1;j>=0;j–) { System.out.print(arr[i].charAt(j)); } … Read more

[Solved] How to get preview of the email body

I’m not sure if I understand you correctly but in case you just want to get the first 255 characters of an existing string you can use: String message; //String that holds your message String previewMessage = “”; //String to store your pewview message if(message.length() >= 255) { previewMessage = message.substring(0, 254); } solved How … Read more

[Solved] The for while statement won’t repeat

Can u try this ? I added to logical solution to code.I changed only starting game and ending game properties’s lines. public class ChoHan { public static void main(String[] args) { final int MAX_ROUNDS = 5; String player1Name; String player2Name; Scanner keyboard = new Scanner(System.in); char repeat; do { System.out.println(” Enter the first player name … Read more

[Solved] How to store an integer variable as an input in character array in Java?

String str = “aaabbcc”; char c; ArrayList<String>count=new ArrayList(); for(int i = 0; i < str.length(); i++){ if(!count.contains(str.charAt(i)+””)){ count.add(str.charAt(i)+””); } } int [] dd = new int [count.size()]; for (int i = 0; i < str.length(); i++) { c=str.charAt(i); for(int j=0;j<count.size();j++){ if(count.get(j).equals(c+””)){ dd[j]++; } } } String newS=””; for(int i=0;i<count.size();i++){ newS+=count.get(i)+dd[i]; } str = newS; System.out.println(str); … Read more

[Solved] incompatible types: int[] cannot be converted to java.util.List

You’re returning List<Integer>, but you’re creating an int[]. They’re completely different things! try this instead: private static List<Integer> randomIntegerArray(int n) { List<Integer> list = new ArrayList<>(); for(int i = 0; i < n; i++) { list.add((int) Math.random()); // always returns 0 } return list; } Or if you definitely want to use an array, change … Read more

[Solved] IF Condition doesnt work

Use this : one_next_diaspora_bt.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { final String Name = name_diaspora_edt.getText().toString().trim(); if(Name.matches(“”)){ Toast.makeText(getApplicationContext(),”Make sure that you have filled your name please !!!”,Toast.LENGTH_LONG).show(); } else{ Intent i = new Intent(Diaspora.this,DiasporaTwo.class); i.putExtra(“Name”,Name); i.putExtra(“Age”,Age); i.putExtra(“Gender”,Gender); i.putExtra(“MaritalStatus”,MaritalStatus); startActivity(i); } } }); } solved IF Condition doesnt work