class method java code example
Example 1: java classes and methods
import java.lang.Math;
import java.util.Scanner;
public class HelloWorld {
public static void main(String[] args) {
class ResultNumberShape {
double number;
public boolean isSquare(double number) {
double result = Math.sqrt(number);
return ((result - Math.floor(result)) == 0);
}
}
ResultNumberShape checkNumber = new ResultNumberShape();
System.out.println("Enter any number:");
Scanner scanner = new Scanner(System.in);
double num = scanner.nextDouble();
scanner.close();
if (checkNumber.isSquare(num)) {
System.out.println(num + " is a sqaure number!");
} else {
System.out.println(num + " is not a square!");
}
}
}
Example 2: java methods
public class MyClass {
static int myMethod(int x) {
return 5 + x;
}
public static void main(String[] args) {
System.out.println(myMethod(3));
}
}
// Returns 8
Example 3: method in java
Method is a collection of statements
which returns a value upon its execution
Method have a return and the method's name may or not be same as the class
name.
Method is invoked explicitly.
Method is not provided by compiler in any case.
Methods are inherited by child classes.