Predict the output of the following code snippet:String P = "20", Q ="22"; int a = Integer.parseInt(P);int b = Integer.valueOf(Q);System.out.println(a + " " + b);

ICSE Computer Application - Class - X ICSE Computer Application - Class X - 2023 PYQ

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Q: Predict the output of the following code snippet:


String P = "20", Q ="22"; 
int a = Integer.parseInt(P);
int b = Integer.valueOf(Q);
System.out.println(a + " " + b);

A 20
B 20 22
C 2220
D 22

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Answer: B

Explanation:

20 22

Reason — The values of strings P and Q are converted into integers using the Integer.parseInt() method and stored in int variables a and b, respectively.
When the statement System.out.println(a + " " + b) is executed, first the operation a + " " is performed. Here, int variable a is converted to a string and a space is concatenated to it resulting in "20 ".
After this, the operation "20 " + b is performed resulting in 20 22 which is printed as the output.

ICSE Computer Application - Class X - 2023 PYQ

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Q: Predict the output of the following code snippet: String P = "20", Q ="22"; int a = Integer.parseInt(P); int b = Integer.valueOf(Q); System.out.println(a + " " + b);

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