Online Access Free 1Z1-803 Exam Questions

Which statement will empty the contents of a StringBuilder variable named sb?

• A.sb.delete(0, sb.length());
• B.sb.deleteAll();
• C.sb.delete(0, sb.size());
• D.sb.removeAll();

int i, j=0; i = (3* 2 +4 +5 ) ; j = (3 * ((2+4) + 5)); System.out.println("i:"+ i + "\nj":+j);
What is the result?

• A.Option A
• B.Option C
• C.Option B
• D.Option D

Given the for loop construct:
for ( expr1 ; expr2 ; expr3 ) {
statement;
}
Which two statements are true?

• A.This is not the only valid for loop construct; there exits another form of for loop constructor.
• B.The expression expr3 must be present. It is evaluated after each iteration through the loop.
• C.When expr2 evaluates to false, the loop terminates. It is evaluated only after each iteration through the loop.
• D.The expression expr1 is optional. it initializes the loop and is evaluated once, as the loop begin.

Given:
public class Test {
static boolean bVar;
public static void main(String[] args) {
boolean bVar1 = true;
int count =8;
do {
System.out.println("Hello Java! " +count);
if (count >= 7) {
bVar1 = false;
}
} while (bVar != bVar1 && count > 4);
count -= 2;
}
}
What is the result?

• A.Hello Java! 8
• B.Compilation fails
• C.Hello Java! 8 Hello Java! 6
• D.Hello Java! 8
  Hello Java! 6 Hello Java! 4

Given:
Class A { }
Class B { }
Interface X { } Interface Y { }
Which two definitions of class C are valid?

• A.Class C extends A, B { }
• B.Class C extends B implements X, Y { }
• C.Class C implements X, Y extends B { }
• D.Class C extends A implements X { }
• E.Class C implements Y extends B { }