Get two raw bytes from a single char

Size of char in Java is two bytes. How can I get raw bytes from a char variable? var ch = ‘文’; var b1 = // ? var b2 = // ? >Solution : You can perform bitwise arithmetic on char to access the individual bytes: var b1 = (byte) ch; var b2 = (byte)… Read More Get two raw bytes from a single char

How not to print the same number for every row, I want different number at every position

I want to print numbers from 100000 to 1000000 separated by two spaces each side of the number. I want to print 15 columns/ 15 unique numbers per line but for each line it’s printing same number. How to fix this class practicex{ public static void main(String[] args) { pract(); } static void pract(){ for… Read More How not to print the same number for every row, I want different number at every position

How do I sort two lists of different objects based on the int values in the objects of the second list?

I’m making a network call that gives me a list of CoinPriceQueryResult objects: public class CoinPriceQueryResult { private String coinQueryId; private double price; } How can I sort this list into the order of my second list of objects: public class CoinStatus { private String coinQueryId; private int position; } based on the position. List<CoinQueryResult>… Read More How do I sort two lists of different objects based on the int values in the objects of the second list?

Aligning in java

I am trying to print the multiplication table using java 19.0.2, using the following code: public class MultiplicationTable { public static void main(String[] args) { for (int i = 1; i < 11; i++) { System.out.println(" 5 * "+ String.format("%2n", i) + " = " + (5*i)); } } } And I get this error… Read More Aligning in java

to compare if three ints = two are equal and one is different

System.out.print("First number: "); int a = Integer.parseInt(reader.readLine()); System.out.print("Second number: "); int b = Integer.parseInt(reader.readLine()); System.out.print("Third number: "); int c = Integer.parseInt(reader.readLine()); if (???????) { System.out.println("Two are equal and one is different"); }else{ System.out.println("…."); } I don’t know what should be in the if condition. >Solution : One of posibilities can be: if ((a == b… Read More to compare if three ints = two are equal and one is different

How to convert "[WARNING]: \t Information \r\n" To "Information" using Stringsplit()?

I want split the message in such a way that I can get just the information from the received line Received : [WARNING]: \t Information \r\n Expected : Information public static String message(String logLine) { String[] str = logLine.split(" "); return str[1]; } >Solution : This code splits the log line by spaces, and returns… Read More How to convert "[WARNING]: \t Information \r\n" To "Information" using Stringsplit()?

Java Beginner; Compilation Error with "endsWith" method

I’m a beginner in Java and am kinda confused why the below code outputs a compilation error. Below is the code. What did I do wrong? import java.util.Iterator; import java.util.List; public class Main { public static void main(String[] args) { List<String> words = List.of("Apple", "Bat", "Cat"); // System.out.println("Apple".endsWith("le")); Iterator it = words.iterator(); while (it.hasNext()) {… Read More Java Beginner; Compilation Error with "endsWith" method

Not getting the correct response for an automorphic number

I was writing a program to check if a number is automorphic or not. I decided to test the program. But somehow, when I entered a number greater than 9376, it said that it was not an automorphic number. Link for automorphic number: Automorphic number import java.util.Scanner; public class test{ public static void main(String[] args)… Read More Not getting the correct response for an automorphic number