Hello guys, how are you doing? I have been sharing a lot of programming interview questions and coding problems for practice in this blog. Earlier, I have shared 21 String programing questions, 100+ data structure questions, and 20 System design questions and this week's programming exercise is to write a program to convert a decimal number to binary in Java. It's a simple exercise for beginners who have just started learning the Java programming language. Decimal numbers are base 10 numbers, which means there are exactly 10 digits to represent a number, starting from 0 to 9, on the other hand, the binary number system has just two digits 0 and 1, which is known as bits.
How to compare two Arrays in Java to check if they are equal - [String & Integer Array Example]
Hello guys, one of the common Programming, the day-to-date task is to compare two arrays in Java and see if they are equal to each other or not. Of course, you can't compare a String array to an int array, which means two arrays are said to be equal if they are of the same type, has the same length, contains the same elements, and in the same order. Now, you can write your own method for checking array equality or take advantage of Java's rich Collection API. Similar to what you have seen while printing array values in Java, java.util.Arrays class provides convenient methods for comparing array values.
How to Run a JAR file from Command Prompt - Windows and UNIX [Example]
So you got a JAR file that contains your favorite Java game and you are wondering how to run a Java program from a JAR file? Or you may be simply trying your hand after running the Java program from the command prompt and Eclipse IDE. Anyway, it's good to know How to execute Java programs from the JAR file, as the JAR file is the most popular way of shipping Java programs. JAR file usually contains all sources and resources in the form of class files, images, sound files, etc.
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