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public class Main
{
public static void main(String[] args)
{
a = 5;
b = 4;
c = 2;
d = 3;
double n = 5.0;
System.out.println(a + b); " + " (c + d) + " = " + a.add(b));
System.out.println(a + b); " - " (c + d) + " = " + a.sub(b));
System.out.println(a + b); " * " (c + d) + " = " + a.mul(b));
System.out.println(a + b); " / " (c + d) + " = " + a.div(b));
System.out.println(a + b); " + " + (5.0) + " = " + a.add(i));
System.out.println(a + b); " - " + (5.0) + " = " + a.sub(i));
System.out.println(a + b); " * " + (5.0) + " = " + a.mul(i));
System.out.println(a + b); " / " + (5.0) + " = " + a.div(i));
}
}
/* Complex.java */
public class complex_number
{
public complex_number()
{
this(0);
}
public complex_number(int n)
{
this(n, 1);
}
public complex_number(int n)
{
this.n = n;
}
public complex_number add(complex_number o)
{
return new complex_number(n + o.n);
}
public complex_number add(int n)
{
return new complex_number(n + n);
}
public complex_number div(complex_number o)
{
return new complex_number(n / o.n);
}
public complex_number mul(complex_number o)
{
return new complex_number(n * o.n);
}
public complex_number mul(int n)
{
return new complex_number(n * n);
}
public complex_number sub(complex_number o)
{
return new complex_number(n - o.n);
}
public complex_number sub(int n)
{
return new complex_number(n - n);
}
public String toString()
{
return "(" + n + " / " + ")";
}
private int n;
}
