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Write a program to explain do while loop in Java ?
// This is the Hello program in Java class Hello { public static void main (String args[]) { int i = -1; do { if (i == -1) System.out.print("Hello "); else { System.out.print(args[i]); System.out.print(" "); } i = i + 1; } while (i < args.length); System.out.println(); // Finish the line } }
Explain the term array and Scope of Variable? Defining the space in that a variable is effective is known as describing the scope of a variable. A variable can be either local
Describe what is bytecode? It is an instruction set. It extends with class. 'javac' compiler translates the .java file into .class. JVM interprets bytecode.
What is Constraints explain with example? One of the purposes to use constructors and setter techniques rather than directly accessing fields is to enforce constraints. For exa
explain jumps in loops and explain labelled loops
RMI uses a layered architecture; every of the layers could be increased or replaced without affecting the rest of the system. The details of layers can be summarised as follows:
One of the principal benefits of JMS messaging is that it's asynchronous. Thus not all the pieces require to be up all the time for the application to function as a whole.
Determine about the Wrapper Classes Every primitive data type has a corresponding object (wrapper class). These wrapper classes provides extra functionality (conversion, size c
Determine Why java is robust Java is very robust o Both, vs. unintentional errors and vs. malicious code such as viruses. o Java has slightly worse performance as
Synchronous messaging involves a client that waits for the server to respond to a message. So if one end is down the whole communication will fail.
what is java
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