Mark the following statements true or false. An identifier ca be any sequence of

Question

Mark the following statements true or false.

An identifier ca be any sequence of digits and letters.

In Java, there is no difference between a reserved word and a predefined identifier.

A Java identifier can start with a digit.

The operands of the modulus operator must be integers. If the value of a is 4 and the value of b is 3 , then after the statement a=b; the value of b is still 3. In an output statement, the newline character may be part of the string.

The following is a legal Java program:

public class JavaProgram { public static void main (String [] args) { } }

Suppose x= 5. After the statement y=x++; executes, y is 5 and x is 6.

Suppose a=5. After the statement ++a; executes, the value of a still 5 because the value of the expression is not saved in another variable.

All you have to do is answer True or False

Explanation / Answer

Answers:

1). An identifier can be any sequence of digits and letters. - FALSE

Exaplanation: In java, all identifiers must begin with a letter, an underscore, or a Unicode currency character. Any other symbol, such as a number, is not valid.

2).In Java, there is no difference between a reserved word and a predefined identifier. - TRUE

Explanation: Reserved words are identifiers, which are predifined in java programming language and it has special meaning for each

3).A Java identifier can start with a digit. - FALSE

Exaplanation: In java, all identifiers must begin with a letter, an underscore, or a Unicode currency character. Any other symbol, such as a number, is not valid.

4).The operands of the modulus operator must be integers. If the value of a is 4 and the value of b is 3 , then after the statement a=b; the value of b is still 3. In an output statement, the newline character may be part of the string. -FALSE

5). The following is a legal Java program: -TRUE

public class JavaProgram { public static void main (String [] args) { } }

6).Suppose x= 5. After the statement y=x++; executes, y is 5 and x is 6. - TRUE

7).Suppose a=5. After the statement ++a; executes, the value of a still 5 because the value of the expression is not saved in another variable. -FALSE

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