Which of the following statements are true?

Select 2 options

A. System.out.println(1 + 2 + "3"); would print 33.
B. System.out.println("1" + 2 + 3); would print 15.
C. System.out.println(4 + 1.0f); would print 5.0
D. System.out.println(5/4); would print 1.25
E. System.out.println('a' + 1 ); would print b.

Which statements about the output of the following programs are true?

public class TestClass{
public static void main(String args[ ] ){
int i = 0 ;
boolean bool1 = true;
boolean bool2 = false;
boolean bool = false;
bool = (bool2 & method1("1")); //1
bool = (bool2 && method1("2")); //2
bool = (bool1 | method1("3")); //3
bool = (bool1 || method1("4")); //4
}
public static boolean method1(String str){
System.out.println(str);
return true;
}
}

Select 2 options

A. 1 will be the part of the output.
B. 2 will be the part of the output.
C. 3 will be the part of the output.
D. 4 will be the part of the output.
E. None of the above

Which operators will always evaluate all the operands?

Select 2 options

A. &&
B. |
C. ||
D. ? :
E. %

What will be the output when the following class is compiled and run?

class ScopeTest{
static int x = 5;
public static void main(String[] args){
int x = ( x=3 ) * 4; // 1
System.out.println(x);
}
}

Select 1 option

A. It will not compile because line //1 cannot be parsed correctly.
B. It will not compile because x is used before initialization.
C. It will not compile because there is an ambiguous reference to x.
D. It will print 12.
E. It will print 3.

Given the following declarations, identify which statements will return true:

Integer i1 = 1;
Integer i2 = new Integer(1);
int i3 = 1;
Byte b1 = 1;
Long g1 = 1L;

Note: Although primitive wrapper classes are not explicitly mentioned in the exam objectives, we have seen some candidates get questions on this aspect of wrapper classes.

Select 2 options

A. i1 == i2
B. i1 == i3
C. i1 == b1
D. i1.equals(i2)
E. i1.equals(g1)
F. i1.equals(b1)