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What is the difference between an if statement and a switch statement?
The if statement is used to select between two alternatives. It uses a boolean expression to decide which alternative should be implemented.
The switch statement is used to select between multiple alternatives. It uses an int expression to verify which alternative should be executed.
String is immutable in java : you can't change a string object but can replace it by creating a new object instance. Creating a new instance is rather expensive. //Non ef
what is java
Write a short Java application that stores words in an Array or ArrayList. You get to pick the number of words to store. Generate a random number between 0 (inclusive) and the leng
Explain the equals() method The equals() method of java.lang.Object acts the similar as the == operator; that is, it tests for object identity rather than object equality. The
Relate in brief - Microsoft vs Java Microsoft hates Java, as a Java program (portable) isn't tied to any particular operating system. If Java is popular, then programs written
The default nature of an object's clone() function automatically provides a shallow copy. So to need a deep copy the classes have to be edited or adjusted. Shallow co
Explain the term- Comparing Strings For comparing Strings never use == operator, use equals method of String class. - == operator compares addresses (shallow comparison) whi
iam trying to build an application that store information like name mobile age in a file its like a registration form everytime i enter a new person data i want the applicaion mak
Explain java.util.Random package? The java.util.Random class permits you to create objects which generates pseudo-random numbers along with uniform or gaussian distributions ac
You are part of a team creating a system to keep track of computer science books that a publisher is producing. Create a UML class diagram for a "computer science book". You must h
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