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VariableTest3.javaAPI DocExample1277Wed Feb 16 17:40:04 GMT 2000tuning.exception

VariableTest3

public class VariableTest3 extends Object

Fields Summary
static int
cntr
static int[]
actr
Constructors Summary
Methods Summary
public static voidmain(java.lang.String[] args)

      
  
    int REPEAT = 500000000;
    int ctr;

    int tot = 0;
    long time = System.currentTimeMillis();
    for (int i = -REPEAT; i < 0; i++)
      tot += i;
    time = System.currentTimeMillis() - time;
    System.out.println("Loop local took " + time);

    tot = 0;
    time = System.currentTimeMillis();
    for (ctr = -REPEAT; ctr < 0; ctr++)
      tot += ctr;
    time = System.currentTimeMillis() - time;
    System.out.println("Method local took " + time);

    tot = 0;
    time = System.currentTimeMillis();
    for (actr[0] = -REPEAT; actr[0] < 0; actr[0]++)
      tot += actr[0];
    time = System.currentTimeMillis() - time;
    System.out.println("Loop static array took " + time);

    tot = 0;
    time = System.currentTimeMillis();
    for (cntr = -REPEAT; cntr < 0; cntr++)
      tot += cntr;
    time = System.currentTimeMillis() - time;
    System.out.println("Loop static took " + time);
public static voidtest1(int REPEAT)

    for (int i = REPEAT; i > 0; i--)
    {
      Point p = new Point(i, i+1);
      p.x = i;
      p.y = i+1;
    }