ThreadProc.java

package com.aspose.cells.examples.articles;

import java.util.Random;

import com.aspose.cells.Workbook;

//ExStart:ThreadProc

public abstract class ThreadProc implements Runnable {
	boolean isRunning = true;
	Workbook testWorkbook;
	Random r = new Random();

	public ThreadProc(Workbook workbook) {
		this.testWorkbook = workbook;
	}

	public int randomNext(int Low, int High) {
		int R = r.nextInt(High - Low) + Low;
		return R;
	}

	public void kill() {
		this.isRunning = false;
	}

	public void run() {

		while (this.isRunning) {
			int row = randomNext(0, 10000);
			int col = randomNext(0, 100);

			String s = testWorkbook.getWorksheets().get(0).getCells().get(row, col).getStringValue();

			if (s.equals("R" + row + "C" + col) != true) {
				System.out.println("This message box will show up when cells read values are incorrect.");
			}
		}
	}

}

	// Main.Java

static void TestMultiThreadingRead() throws Exception {

    Workbook testWorkbook = new Workbook();
    testWorkbook.getWorksheets().clear();
    testWorkbook.getWorksheets().add("Sheet1");

    for (int row = 0; row < 10000; row++)
        for (int col = 0; col < 100; col++)
            testWorkbook.getWorksheets().get(0).getCells().get(row, col).setValue("R" + row + "C" + col);

    //Commenting this line will show a pop-up message
    testWorkbook.getWorksheets().get(0).getCells().setMultiThreadReading(true);



    ThreadProc tp = new ThreadProc(testWorkbook);

    Thread myThread1 = new Thread(tp);
    myThread1.start();

    Thread myThread2 = new Thread(tp);
    myThread2.start();

    Thread.currentThread().sleep(5*1000);
    tp.kill();

}