I have a question about Methods with Multiple Parameters?

Question

Explain how methods with multiple parameters are declared. Describe two examples of Java-based applications that might use methods that have two or more parameters. Provide detail about where those applications would be used.

Answer 1

The multiple parameters are listed in order in the method declaration.

For example, in the Math class, the method to compute one number raised to another number's power:

public static double pow(double a, double b)

That's one example of an application where two or more parameters are required. Another example is the static method on Integer which can parse numbers in multiple bases (for example, binary, hex, etc.) which takes the String to parse, and the radix (base):

public static int parseInt(String s, int radix)

Answer 2

// handling methods with 2 parameters
class HandlingParameters {

void test(int a, int b) {
System.out.println("a and b: " + a + " " + b);
}

}
class MultiplParametes {
public static void main(String args[]) {
HandlingParameters ob = new HandlingParameters();
double result;
// call all versions of test()
ob.test();

//call multiple parameters
ob.test(10, 20);

}
}

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inside class HandlingParameters method test recives two arguments int a and int b from object 'ob'.test . This is v.simple example.

Answer 3

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