How do you use predefined methods in java?

Answer 1

The largest structure in a java program is a Class. The structure that is the second largest, and a sub-component of a Class is a Method. Each Method has a name and code inside of it that performs a function. Whenever the Method is called upon by naming it the code inside of it is executed. To use a Method in a separate Class requires an Object to be created inside of the separate Class and then the Object is stated along with the Method to be able to perform a Method's specific function.

If the method is defined as static then a class object is not required to call this method.

Answer 2

The same as user-defined methods. Use the method name, usually with an object or class name in front of it, and a list of parameters if applicable; and if you need the return value, assign it to a variable:

returnValue = myObject.standardMethod(parameter1, parameter2);

Answer 3

You use methods to implement behavior. Methods usually alter the state of an object, although there are also methods that simply allow you to get and set specific members.

Answer 4

As compared to what? If you use Java, all commands have to be written in methods, so there is really no alternative.

Answer 5

some sample methods are:

public String getName(){

return this.name;

}

public int multiply(int a, int b){

return a * b;

}