Java Programming Test 1

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What is byte code in the context of Java?

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What is garbage collection in the context of Java?

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What is different between a Java applet and a Java application?

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An expression involving byte, int, and literal numbers is promoted to which of these?

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What is the output of this program?

class mainclass {

public static void main(String args[])

{

char a = ‘A’;

a++;

System.out.print((int)a);

}

}

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Which is a valid keyword in java?

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Which one is a valid declaration of a boolean?

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Which is a valid declarations of a String?

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Which is a reserved word in the Java programming language?

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What is the output of this program?

class mainclass {

public static void main(String args[])

{

boolean var1 = true;

boolean var2 = false;

if (var1)

System.out.println(var1);

else

System.out.println(var2);

}

}

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Which one is a valid declaration of a boolean?

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Who is the creator of JAVA ?

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Which of the following statements about the Java language is true?

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Java source codes are compiled and converted to

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What is the Extension of java bytecodes?

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What are the pillars of OOPS concept?

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___________ is a name given to a variable, class or method

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What is the default data type of a decimal number in Java?

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What would be the output of the following program?

class Sample

{

public static void main(String[] args)

{

int i;

System.out.println(“i is not used in this program!”);

}

}

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What would be the output of the following program?

class ByteSize

{

public static void main(String[] args)

{

byte b=128;

System.out.println(b);

}

}