Java Programming

In reality, it's not. 2,147,483,647 is the largest number that an int type can hold. This is because Java uses a 32-bit signed integer value for ints. Since it's signed, one bit needs to hold the sign value, leaving us 31 bits for storage. 231 = 2,147,483,648, which is the total number of values which can be held in 31 bits. Since we also need to store a zero, our maximum is 2,147,483,647. The total range of data which can be held in an int is [-2,147,483,648 : 2,147,483,647].

But, as was said above, this is not the biggest number Java can handle. It also has support for 64-bit long integer types. This type can hold values in the range [-9,223,372,036,854,775,808 : 9,223,372,036,854,775,807].

And finally we have the BigInteger class, which can hold infinitely large numbers, limited only by the physical capacity of your storage space (RAM).

the copy constructor

He is the father of the Java programming language.

Implement these methods:

public static int smallest(int[] arr) {

int small = arr[0];

for(int i = 1; i < arr.size(); i++)

if(arr[i] < small)

small = arr[i];

return small;

}

public static int largest(int[] arr) {

int large = arr[0];

for(int i = 1; i < arr.size(); i++)

if(arr[i] > large)

large = arr[i];

return large;

}

true

PROPERTIES are basic (or essential) elements or attributes, owned or possessed by something. Usually, the properties are concrete, intrinsic and objective.

CHARACTERISTICS are prominent aspects, qualities or features of something. Normally these are extrinsic and subjective.

For example, the characteristic of iron is that it is hard while its property is that its melting point is 1811K.

They can't be private...what's the point of a private interface method? It can't be called by anything.

It can't be protected for a similar reason. Interfaces are simply for exposing public functionality to other classes. If you want protected status, then create a new class and inherit the methods, because protected restricts access to the class tree I guess you have to stand back and look at what the "Interface" design is for. It is to allow objects that possibly come from different packages and even vendors (this is the basis for J2EE design and implementation) to interoperate with a known reference point.

If you need to hide methods between your own modules (which this appears, to me, to be your problem) then you should be able to accomplish it with an Abstract Class and get around your issues? Of course, you can also use the default (no) access modifier to allow only package classes and subclasses to call the methods of an interface.

data marshalling in java means that the structured data item is flattening and converted into external representation

data demarshalling is the process of convert the data back to the internal representation and rebuild the data structures.

The advantage of using a cellphone is that it is portable and affordable. It therefore makes communication easier and faster. The disadvantage is that it may lack privacy and may be very costly.

Declaration of the object involves only creating the reference variable to the object. Example: class SampleClass{ } Object Declaration: SampleClass obj1; Object Creation: Creating an object involves use of new keyword and actually allocating memory for that object. SampleClass obj2 = new SampleClass ();

Runnable interface

// Get input

BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

String input = in.readLine();

in.close();

// Parse input

int sum = 0;

StringTokenizer parser = new StringTokenizer(input);

while (parser.hasMoreTokens()) {

int currentInt = Integer.parseInt(parser.nextToken());

System.out.println(currentInt);

sum += currentInt;

}

System.out.println("sum = " + sum);

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Ans. 1. The big M method solves the problem in one pass, whereas the two phase

method solve it in two stages.

2. The big M method is computionally inconvenient due to existence of the large number M The two phase method does not involve M during

computation

3. The big M method present a difficulty when the problem is solved on digital computer, but there is no such type of problem in two phase method.

A float is a pre-determined amount of cash (notes & coin) ie. at start or end of shift before any sales are put through. eg. My work has a float of $300.00 AUD which I have to count before I start my shift then again at end of shift or end of day. I deduct the $300.00 from the toal and the rest is banked in a drop safe with a balance sheet leaving a "float" of $300.00 for the next operator. -Grant

1. Syntax errors: errors due to the fact that the syntax of the language is not respected.(The first type of error is a syntax error. You already know that syntax errors are caused when you don ' t obey the syntax rules of C#. A common syntax rule you might make in the beginning is forgetting to terminate each program statement with a semicolon.

   Intellisense does an excellent job of catching syntax errors. While you may hate the squiggly line

   that Intellisense displays, it ' s a lot easier for Intellisense to detect and isolate syntax errors than it is for you to do it yourself.)

2. Semantic errors: errors due to an improper use of program statements.( Logic errors are those errors that remain after all the semantic and syntax errors have been removed. Usually, logic errors manifest themselves when the result the program produces doesn ' t match the result your test data suggest it should produce. Most of the time, logic errors are found in the Process . Logic errors occur when you implement the algorithm for solving the problem incorrectly.

   The key to fixing logic errors is to be able to reproduce the error consistently. A repeatable logic error is much easier to track down and fix than an error that appears to be occurring randomly. you will learn the details of using some of the tools Visual Studio provides to help you detect and isolate program bugs.))

3. Logical errors: errors due to the fact that the specification is not respected(A semantic error occurs when you obey the syntax rules of the language but are using the statement out of context. For example, a sentence in English is expected to have a noun and a verb. Consider the sentence " The dog meowed. " This sentence does obey the rules of having a noun and a verb, but the context of the sentence is out of whack. Dogs don ' t meow, therefore the context of the statement is incorrect. The error message I showed you earlier:

   The name 'i' does not exist in the current context refers to a type of semantic error. There may well be a variable named i defined somewhere in the program, but it is not currently in scope. That is, you are trying to use i when it is out of scope.Intellisense does a good job of detecting semantic errors.)

/*This function will return the determinant of any two dimensional matrix. For this particular function a two dimensional double matrix needs to be passed as arguments - Avishek Ghosh*/

public double determinant(double[][] mat) {

double result = 0;

if(mat.length 2) {

result = mat[0][0] * mat[1][1] - mat[0][1] * mat[1][0];

return result;

}

for(int i = 0; i < mat[0].length; i++) {

double temp[][] = new double[mat.length - 1][mat[0].length - 1];

for(int j = 1; j < mat.length; j++) {

System.arraycopy(mat[j], 0, temp[j-1], 0, i);

System.arraycopy(mat[j], i+1, temp[j-1], i, mat[0].length-i-1);

}

result += mat[0][i] * Math.pow(-1, i) * determinant(temp);

}

return result;

}

No, they usually are written in plain text. HTML is a formatting language that explains to a browser how to display content. Java is a programming language that controls the computer. Many times a website will contain JavaScript, which is a completely different language that Java.

There is no other relation apart from having Java in their names.

JSP is a technology that is used to create powerful User Interface components

whereas

JDBC is a technology that is used to connect to Relational Databases like Oracle or Sybase

They are not examples of languages. They arelanguages.