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SinTable.javaAPI DocExample1309Thu Apr 22 08:35:08 BST 2004javathreads.examples.ch15.example6

SinTable

public class SinTable extends GuidedLoopHandler

Fields Summary
private float[]
lookupValues
public float
sumValue
Constructors Summary
public SinTable()

        super(0, 360*100, 100, 12);
        lookupValues = new float [360 * 100];
Methods Summary
public float[]getValues()

        loopProcess();
        System.out.println(sumValue);
        return lookupValues;
public voidloopDoRange(int start, int end)

        float sinValue = 0.0f;
        float sumValue = 0.0f;
        for (int i = start; i < end; i++) {
            sinValue = (float)Math.sin((i % 360)*Math.PI/180.0);
            lookupValues[i] = sinValue * (float)i / 180.0f;
            sumValue += lookupValues[i];
        }
        synchronized (this) {
            this.sumValue += sumValue;
        }
public static voidmain(java.lang.String[] args)

        System.out.println("Starting Example 6 (Two-Stage Reduction Example)");
        System.out.print("Sum: ");

        SinTable st = new SinTable();
        float results[] = st.getValues();

        System.out.println("Results: "+ results[0]+ ", "+
                      results[1]+ ", "+ results[2]+ ", "+ "...");
        System.out.println("Done");