JAVA EXAMPLE PROGRAMS

Program: Assertion method Assert.assertFalse() example.

Java Class: org.junit.Assert

Assert class provides a set of assertion methods useful for writing tests.

Assert.assertFalse() methods checks whether the expected value is false or not.

package com.java2novice.junit.tests;

import org.junit.Test;
import static org.junit.Assert.*;

public class MyAssertFalseTest {

	public boolean isEvenNumber(int number){
		
		boolean result = false;
		if(number%2 == 0){
			result = true;
		}
		return result;
	}
	
	@Test
	public void evenNumberTest(){
		MyAssertFalseTest asft = new MyAssertFalseTest();
		assertFalse(asft.isEvenNumber(3));
	}
}

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wait Vs sleep methods

sleep(): It is a static method on Thread class. It makes the current thread into the "Not Runnable" state for specified amount of time. During this time, the thread keeps the lock (monitors) it has acquired.

wait(): It is a method on Object class. It makes the current thread into the "Not Runnable" state. Wait is called on a object, not a thread. Before calling wait() method, the object should be synchronized, means the object should be inside synchronized block. The call to wait() releases the acquired lock.

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I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.