Easy.java

package java_quiz;

public class Easy {
	int n=20;
	String que[] = new String[n];
	char ans[] = new char[n];
	Easy()
	{
		que[0] = "Which one of these lists contains only Java programming language keywords?"
				+ "\nA. class, if, void, long, Int, continue"
				+ "\nB. goto, instanceof, native, finally, default, throws"
				+ "\nC. try, virtual, throw, final, volatile, transient"
				+ "\nD. strictfp, constant, super, implements, do";
		ans[0] = 'B';
		que[1] = "Which is a valid keyword in java?\n" + 
				"A.	interface\n" + 
				"B.	string\n" + 
				"C.	Float\n" + 
				"D.	unsigned";
		ans[1] = 'A';
		que[2] = "Which is a reserved word in the Java programming language?\n" + 
				"A.	method\n" + 
				"B.	native\n" + 
				"C.	subclasses\n" + 
				"D.	reference";
		ans[2] = 'B';
		que[3] ="Which is the valid declarations within an interface definition?\n" +  
				"A.	public double methoda();\n" + 
				"B.	public final double methoda();\n" + 
				"C.	static void methoda(double d1);\n" + 
				"D.	protected void methoda(double d1);";
		ans[3] = 'A';
		que[4] = "Which one is a valid declaration of a boolean?\n" +
				"A.	boolean b1 = 0;\n" + 
				"B.	boolean b2 = 'false';\n" + 
				"C.	boolean b3 = false;\n" + 
				"D.	boolean b4 = Boolean.false();" ;
		ans[4] = 'C';
		que[5] ="What is the numerical range of a char?\n" + 
				"A.	-128 to 127\n" + 
				"B.	-(2^15) to (2^15) - 1\n" + 
				"C.	0 to 32767\n" + 
				"D.	0 to 65535";
		ans[5] = 'D';
		que[6] = "Which of the following statements are true for inheritance in Java?\n" + 
				"A. The “extend” keyword is used to extend a class in java.\n" + 
				"B. You can extend multiple classes in java.\n" + 
				"C. Private members of the superclass are accessible to the subclass.\n" + 
				"D. We can’t extend Final classes in java.";
		ans[6] = 'D';
		que[7] = "Which of the below are not unchecked exceptions in java?\n" + 
				"A. RuntimeException\n" + 
				"B. ClassCastException\n" + 
				"C. NullPointerException\n" + 
				"D. IOException";
		ans[7] = 'D';
		que[8] = "What is the process by which we can control what parts of a program can "
				+ "access the members of a class?\n" + 
				"A Polymorphism\n" + 
				"B Abstraction\n" + 
				"C Encapsulation\n" + 
				"D Recursion";
		ans[8] = 'C';
		que[9] = "What is byte code in Java?\n" + 
				"A. Code generated by a Java compiler\n" + 
				"B. Code generated by a Java Virtual Machine\n" + 
				"C. Name of Java source code file\n" + 
				"D. Block of code written inside a class";
		ans[9] = 'A';
		que[10] = "Which variables are created when an object is created with the use of the keyword 'new' " + 
				"and destroyed when the object is destroyed?\n" + 
				"A. Local variables\n" + 
				"B. Instance variables\n" + 
				"C. Class Variables\n" + 
				"D. Static variables";
		ans[10] = 'B';
		que[11] = "Evaluate the following Java expression, if x=3, y=5, and z=10:\r\n" + 
				"++z + y - y + z + x++\r\n" + 
				"A. 24\n" + 
				"B. 23\n" + 
				"C. 20\n" + 
				"D. 25";
		ans[11] = 'A';
		que[12] = "Which of these classes are the direct subclasses of the Throwable class?\n" + 
				"A. RuntimeException and Error class\n" + 
				"B. Exception and VirtualMachineError class\n" + 
				"C. Error and Exception class\n" + 
				"D. IOException and VirtualMachineError class";
		ans[12] = 'C';
		que[13] = "The wrapping up of data and functions into a single unit is called\n" + 
				"A. Encapsulation\n" + 
				"B. Abstraction\n" + 
				"C. Data Hiding\n" + 
				"D. Polymorphism";
		ans[13] = 'A';
		que[14] = "In Java, declaring a class abstract is useful\n" +  
				"A. To prevent developers from further extending the class\n" + 
				"B. When it doesn’t make sense to have objects of that class\n" + 
				"C. When default implementations of some methods are not desirable\n" + 
				"D. To force developers to extend the class not to use its capabilities";
		ans[14] = 'B';
		que[15] = "Which of the following is a member of the java.lang package?\n" + 
				"A. List\n" + 
				"B. Queue\n" + 
				"C. Math\n" + 
				"D. Stack";
		ans[15] = 'B';
		que[16] = "Which operator is used by Java run time implementations to free the memory "
				+ "of an object when it is no longer needed?\n" + 
				"A. delete\n" + 
				"B. free\n" + 
				"C. new\n" + 
				"D. none of the mentioned";
		ans[16] = 'D';
		que[17] = "Which of the following classes can catch all exceptions which cannot be caught?\n" + 
				"A. RuntimeException\n" + 
				"B. Error\n" + 
				"C. Exception\n" + 
				"D. ParentException";
		ans[17] = 'B';
		que[18] = "What is not the use of “this” keyword in Java?\n" + 
				"A. Passing itself to another method\n" + 
				"B. Calling another constructor in constructor chaining\n" + 
				"C. Referring to the instance variable when local variable has the same name\n" + 
				"D. Passing itself to method of the same class";
		ans[18] = 'D';
		que[19] = "What is the order of precedence (highest to lowest) of following operators?\n" + 
				"    1. &\n" + 
				"    2. ^\n" + 
				"    3. ?:\n" + 
				"A. 1 -> 2 -> 3\n" + 
				"B. 2 -> 1 -> 3\n" + 
				"C. 3 -> 2 -> 1\n" + 
				"D. 2 -> 3 -> 1";
		ans[19] = 'A';
	}
	public void display(int i)
	{
		System.out.println("\n"+que[i]+"\n");
	}
	public boolean answer(char a,int i)
	{
		if(a==ans[i])
			return true;
		else
			return false;
	}
	public void right(int i)
	{
		System.out.println("Right answer is : "+ans[i]);
	}
}