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1. Which of the following can be operands of arithmetic operators?
Numeric | Boolean | Characters | Both Numeric & Characters |
2. Modulus operator, %, can be applied to which of these?
Integers | Floating – point numbers | Both Integers and floating – point numbers. | None of the mentioned |
3. With x = 0, which of the following are legal lines of Java code for changing the value of x to 1?
1. x++;
2. x = x + 1;
3. x += 1;
4. x =+ 1;
1, 2 & 3 | 1 & 4 | 1, 2, 3 & 4 | 3 & 2 |
4. Decrement operator, –, decreases value of variable by what number?
1 | 2 | 3 | 4 |
5. Which of these statements are incorrect?
Assignment operators are more efficiently implemented by Java run-time system than their equivalent long forms. | Assignment operators run faster than their equivalent long forms. | Assignment operators can be used only with numeric and character data type. | None |
6. What should be expression1 evaluate to in using ternary operator as in this line?
expression1 ? expression2 : expression3
Integer | Floating – point numbers | Boolean | None of the mentioned |
7. What is the value stored in x in following lines of code?
int x, y, z;
x = 0;
y = 1;
x = y = z = 8;
0 | 1 | 9 | 8 |
8. What is the order of precedence (highest to lowest) of following operators?
1. &
2. ^
3. ?:
1 -> 2 -> 3 | 2 -> 1 -> 3 | 3 -> 2 -> 1 | 2 -> 3 -> 1 |
9. Which of these statements are incorrect?
Equal to operator has least precedence. | Brackets () have highest precedence. | Division operator, /, has higher precedence than multiplication operator. | Addition operator, +, and subtraction operator have equal precedence. |
10. What is the output of relational operators?
Integer | Boolean | Characters | Double |
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