====== Expressions ======

These are simple "Expression" examples.
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First a "plus/minus one" example.

<code java PlusMinusOne.java>
public class PlusMinusOne {

  public static void main(String[] args ) {
    int a = 4;
    int b = 5;
    
    System.out.println(++a);
    System.out.println(b--);
    System.out.println(a++);
    System.out.println(--b);
  }
}
</code>
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Divide with a leftover.
<code java Divide.java>
public class Divide{

  public static void main(String[] args ) {
  int a=9;
  int b=2;
  int quotient;
  int rest;
  
  quotient =a/b;
  rest = a % b;
  
  System.out.println("a/b= "+quotient + " Rest: "+rest);
  }
}
</code>
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Complex math tasks.

<code java ComplexMath.java>
public class ComplexMath {

  public static void main(String[] args ) {

  double a = 3;
  double c=12/(8*a*a);
  
  System.out.println(+c);

  double d = 2;
  double j = ((3*d*d*d*d)-(2*d*d*d))+(d-2);
  
  System.out.println(+j);

  double y = 4;
  double x = 3;
  double u= x*((2*x)+(3*y))/((3*x)+y)*((2*x)-(2*y));
  
  System.out.println(+u);
  
  }
}
</code>
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Compare with equal, lower, greater...

<code java Equal.java>
public class Equal {

  public static void main(String[] args) {
  
    int a = 4;
    int b = 5;
    boolean lower ,lowerequal;
    boolean greater, greaterequal;
    boolean equal, notequal;
    

    lower = (a < b);
    lowerequal = (a <= b);
    greater = (a > b);
    greaterequal = (a >= b);
    equal = (a == b);
    notequal = (a != b);
    
    System.out.println (a + " < " +b + " : "+ lower);
    System.out.println (a + " <= " +b + " : "+ lowerequal);
    System.out.println (a + " > " +b + " : "+ greater);
    System.out.println (a + " >= " +b + " : "+ greaterequal);
    System.out.println (a + " == " +b + " : "+ equal);
    System.out.println (a + " != " +b + " : "+ notequal);
  }
}
</code>

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~~DISCUSSION:closed~~