25 question "java"

Question

The name of a Java program file must match the name of the class with the extension .java True       B.  False

Two methods cannot have the same name in Java. A.   True False

The modulus operator (%) can be used only with integer operands True False

Declarations can appear anywhere in the body of a Java method. True False

All the bitwise operators have the same level of precedence in Java. True False

When X is a positive number, the operations x>>2 and x>>>2 both produce the same result. True       B.  False

If a=10 and b=15, then the statement x=(a>b)?a:b; assigns the value 15 to x True       B.  False

In evaluating a logical expression of type Boolean expression1 && Boolean expression2 Both the Boolean expressions are not always evaluated. True       B.  False

In evaluating the expression (x == y && a<b) the boolean expression x==y is evaluated first and then a<b is evaluated. True       B.  False

The default base is always required in the switch selection structure. True       B.  False

The break statement is required in the default case of a switch selection structure. True       B.  False

The expression (x ==y && a<b) is true if either x == y is true or a<b is true True       B.  False

A variable declared inside the for loop control cannot be referenced outside the loop True       B.  False

Java always provides a default constructor to a class True       B.  False

When present package must be the first noncomment statement in the file. True       B.  False

The import statement is always the first noncomment statement in a Java program file True       B.  False

Objects are passed to a method by use of call-by-reference True       B.  False

It is perfectly legal to refer to any instance variable inside of a static method. True       B.  False

When we implement an interface method, it should be declared as public True       B.  False (abstract)

We can overload methods with differences only in their return type True       B.  False

It is an error to have a method with the same signature in both the super class and its subclass. True       B.  False

A constructor must always invoke its super class constructor in its first statement. True       B.  False

Subclasses of an abstract class that do not provide an implementation of an abstract method, are also abstract. True       B.  False

Any class may be inherited by another class in the same package. True       B.  False

Any method in a super class can be overridden in its subclass. True       B.  False

Answer 1

This is J# forum, most of your questions are native java. It will be nice if you can ask the question at native java forum http://forums.sun.com/index.jspa.

kaymaf

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I hope this helps, if that is what you want, just mark it as answer so that we can move on

Answer 2

motto tainu answers chahide c tan mainu dasdi. net te pange lain di lod ki c puttar.

Answer 3

Answers  only for u Dear Motto

1.    F                                      14.  T                                   
2.    F                                      15.  T
3.    F                                      16.  F
4.    T                                      17.  T
5.    F                                      18.  T
6.    F                                      19.  T
7.    T                                      20.  F 
8.    F                                      21.  T
9.    T                                      22.  T
10.  T                                      23.  T
11.  T                                      24.  F
12.  F                                      25.  F
13.  T

Answer 4

ok mai dekhta hu.

what is the meaning of motto.