[Free] 2018(Jan) EnsurePass Examcollection Oracle 1z0-803 Dumps with VCE and PDF 121-130

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Java SE 7 Programmer I

Question No: 121

Given the code fragment:

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What is the result?

  1. 20

  2. 25

  3. 29

  4. Compilation fails

  5. AnArrayIndexOutOfBoundsException is thrown at runtime

Answer: A

Question No: 122

Given:

public class Test {

public static void main(String[] args) { try {

String[] arr =new String[4]; arr[1] = quot;Unixquot;;

arr[2] = quot;Linuxquot;; arr[3] = quot;Solariosquot;; for (String var : arr) {

System.out.print(var quot; quot;);

}

} catch(Exception e) { System.out.print (e.getClass());

}

}

}

What is the result?

  1. Unix Linux Solaris

  2. Null Unix Linux Solaris

  3. Class java.lang.Exception

  4. Class java.lang.NullPointerException

Answer: B

Explanation: null Unix Linux Solarios

The first element, arr[0], has not been defined.

Question No: 123

Given the code format:

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Which code fragment must be inserted at line 6 to enable the code to compile?

  1. DBConfiguration f; return f;

  2. Return DBConfiguration;

  3. Return new DBConfiguration;

  4. Retutn 0;

Answer: B

Question No: 124

Given:

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What will be the output?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: D

Question No: 125

Given:

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And the commands: Javac Test.java Java Test 12345

What is the result?

  1. Number us : 12345

  2. A NullPointerException is thrown at runtime

  3. A NumberFormatException is thrown at runtime

  4. AnArrayIndexOutOfBoundException is thrown at runtime.

Answer: A

Question No: 126

Given:

public class X { static int i;

int j;

public static void main(String[] args) { X x1 = new X();

X x2 = new X(); x1.i = 3;

x1.j = 4;

x2.i = 5;

x2.j = 6;

System.out.println( x1.i quot; quot;

x1.j quot; quot;

x2.i quot; quot;

x2.j);

}

}

What is the result?

A. 3 4 5 6

B. 3 4 3 6

C. 5 4 5 6

D. 3 6 4 6

Answer: C

Question No: 127

Given the code fragment:

public class Test {

public static void main(String[] args) { boolean isChecked = false;

int arry[] = {1,3,5,7,8,9};

int index = arry.length; while ( lt;code1gt; ) {

if (arry[index-1] % 2 ==0) { isChecked = true;

}

lt;code2gt;

}

System.out.print(arry(index] quot;, quot; isChecked));

}

}

Which set of changes enable the code to print 1, true?

  1. Replacing lt;code1gt; with index gt; 0 and replacing lt;code2gt; with index-;

  2. Replacing lt;code1gt; with index gt; 0 and replacing lt;code2gt; with -index;

  3. Replacing lt;code1gt; with index gt; 5 and replacing lt;code2gt; with -index ;

  4. Replacing lt;code1gt; with index and replacing lt;code2gt; with -index ;

Answer: A Explanation:

Note: Code in B (code2 is -index;). also works fine.

Question No: 128

Give:

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What value should replacekkin line x to cause jj = 5 to be output?

  1. -1

  2. 1

  3. 5

  4. 8

  5. 11

Answer: E Explanation:

We need to get jj to 5. It is initially set to 0. So we need to go through the for loop 5 times. The for loops ends when ii gt; 6 and ii decreases for every loop. So we need to initially set ii to 11. We set kk to 11.

Question No: 129

Given:

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Why will the code not compile?

  1. A static field cannot be private.

  2. The getLetter method has no body.

  3. There is no setLetter method.

  4. The letter field is uninitialized.

  5. It contains a method named Main instead of ma

Answer: B Explanation:

The getLetter() method needs a body public static int getLetter() { }; .

Question No: 130

Given the code fragment:

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Which statement is true?

  1. After line 8, three objects are eligible for garbage collection

  2. After line 8, two objects are eligible for garbage collection

  3. After line 8, one object is eligible for garbage collection

  4. After line 8, none of the objects are eligible for garbage collection

Answer: C

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