Java True or False question and multiple choice : ___1. Given a decimal number,
ID: 3934626 • Letter: J
Question
Java True or False question and multiple choice :
___1. Given a decimal number, the method format of the class DecimalFormat returns a string containing the digits of the number formatted. True or False
___2. The value of a variable cannot change during program execution. True or False
___3. The expression !(x < 0) is true only if x is a positive number. True or False
Multiple choice
___4. Which of the following has the highest value?
A. '+' B.' * ' C.'R' D.'a'
___5. The showMessageDialog method takes ____ parameters.
A. 1 B.2,4 or 5 C.None D.3 or 6
___6. Suppose x and y are int variables. Consider the following statements.
if (x > 5) {
y = 1;
} else if (x < 5) {
if (x < 3) {
y = 2;
} else {
y = 3;
}
} else {
y = 4;
}
What is the value y if x = 3?
A.1 B.2 C. 3 D.4
Explanation / Answer
1) true
2)false , their might be manipulation done on variable value
3)true because x<0 is false which on negation becomes true
4) D. 'a'
5) B. 2,4 or 5
6) C. 3
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