topic/Java Programming
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Question No
Title
Type
Marks
770.
public class Test2 { public static int x; public static int foo(int y) { return y * 2; } public static void main(String [] args) { int z = 5; assert z > 0; /* Line 11 */ assert z > 2: foo(z); /* Line 12 */ if ( z < 7 ) assert z > 4; /* Line 14 */ switch (z) { case 4: System.out.println("4 "); case 5: System.out.println("5 "); default: assert z < 10; } if ( z < 10 ) assert z > 4: z++; /* Line 22 */ System.out.println(z); } }which line is an example of an inappropriate use of assertions?
MCQ
5
727.
You want subclasses in any package to have access to members of a superclass. Which is the most restrictive access that accomplishes this objective?
MCQ
5
728.
public class Outer { public void someOuterMethod() { //Line 5 } public class Inner { } public static void main(String[] argv) { Outer ot = new Outer(); //Line 10 } }Which of the following code fragments inserted, will allow to compile?
MCQ
5
729.
interface Base { boolean m1 (); byte m2(short s); }which two code fragments will compile?interface Base2 implements Base {}abstract class Class2 extends Base{ public boolean m1(){ return true; }}abstract class Class2 implements Base {}abstract class Class2 implements Base{ public boolean m1(){ return (7 > 4); }}abstract class Class2 implements Base{ protected boolean m1(){ return (5 > 7) }}
MCQ
5
730.
Which three form part of correct array declarations?public int a [ ]static int [ ] apublic [ ] int aprivate int a [3]private int [3] a [ ]public final int [ ] a
MCQ
5
737.
public void foo( boolean a, boolean b) { if( a ) { System.out.println("A"); /* Line 5 */ } else if(a && b) /* Line 7 */ { System.out.println( "A && B"); } else /* Line 11 */ { if ( !b ) { System.out.println( "notB") ; } else { System.out.println( "ELSE" ) ; } } }
MCQ
5
738.
switch(x) { default: System.out.println("Hello"); }Which two are acceptable types for x?bytelongcharfloatShortLong
MCQ
5
740.
public class While { public void loop() { int x= 0; while ( 1 ) /* Line 6 */ { System.out.print("x plus one is " + (x + 1)); /* Line 8 */ } } }Which statement is true?
MCQ
5
761.
void start() { A a = new A(); B b = new B(); a.s(b); b = null; /* Line 5 */ a = null; /* Line 6 */ System.out.println("start completed"); /* Line 7 */ }When is the B object, created in line 3, eligible for garbage collection?
MCQ
5
762.
class HappyGarbage01 { public static void main(String args[]) { HappyGarbage01 h = new HappyGarbage01(); h.methodA(); /* Line 6 */ } Object methodA() { Object obj1 = new Object(); Object [] obj2 = new Object[1]; obj2[0] = obj1; obj1 = null; return obj2[0]; } }Where will be the most chance of the garbage collector being invoked?
MCQ
5
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