Set 5

Multiple Choice Question

QID: 
288

Note: This question may be considered too advanced for this exam.

What will the following code print when run?

public class TestClass{     
public static Integer wiggler(Integer x){      
 Integer y = x + 10;     
  x++;      
 System.out.println(x);       
return y;    }   
 public static void main(String[] args){      
 Integer dataWrapper = new Integer(5);    
  Integer value = wiggler(dataWrapper);      
 System.out.println(dataWrapper+value);    } }

Select 1 option 

A. 5 and 20 
B. 6 and 515 
C. 6 and 20 
D. 6 and 615 
E. It will not compile.

Multiple Choice Question

QID: 
287

Note: This question may be considered too advanced for this exam. 

Given: 

String mStr = "123"; 
long m = // 1 

Which of the following options when put at //1 will assign 123 to m?

Select 3 options 

A. new Long(mStr); 
B. Long.parseLong(mStr); 
C. Long.longValue(mStr); 
D. (new Long()).parseLong(mStr); 
E. Long.valueOf(mStr).longValue();

Multiple Choice Question

QID: 
286

Given the following code, which statements can be placed at the indicated position without causing compile and run time errors?

public class Test{
int i1;
static int i2;
public void method1(){
int i;       // ... insert statements here
}
}

Select 3 options

A. i = this.i1;
B. i = this.i2;
C. this = new Test( );
D. this.i = 4;
E. this.i1 = i2;

True or False

QID: 
285

The following code snippet will print 4.

int i1 = 1, i2 = 2, i3 = 3;
int i4 = i1 + (i2=i3 );
System.out.println(i4);

Select 1 option

A. True
B. False

Multiple Choice Question

QID: 
284

Which of these are not legal declarations within a class?

Select 1 option

A. static volatile int sa ;
B. final Object[ ] objArr = { null } ;
C. abstract int t ;
D. native void format( ) ;
E. final transient static private double PI = 3.14159265358979323846;

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