how to start a class in java code example
Example 1: how to make a class in java
public class Main {
public static void main (String[] args) {
System.out.println("Hello World");
}
}
Example 2: using class in java
public class HelloWorld {
public static void main(String[] args) {
class Number{
int number;
public boolean isPos(){
if(number > 0){
return true;
} else {
return false;
}
}
}
Number myNumber = new Number();
myNumber.number = 7;
if(myNumber.isPos()){
System.out.println(myNumber.number + " is positive!!!");
} else {
System.out.println(myNumber.number + " is not positive!!!");
}
}
}
Example 3: how to make a class in java
// Public creates avaliability to all classes/files
public class Object {
// Instance of a variable per each class created
public int a = 1;
// Private restricts in local space (within these brackets)
private int b = 5;
// Defaults as public
int c = 0;
// Method Examples
void setB(int B)
{
b = B;
// No return b/c 'void'
}
int getA()
{
return b;
// Return b/c 'int' in front of method
}
}