Briefly explain the following java code including its output [5 Marks]switch (day){case 1:System.out.println (“sunday ” );break;case 2:System.out.println (“Tuesday ” );break;case 3:System.out.println (“Wednesday ” );break;default : System.out.println (“unknown ” );break;}
Question
Briefly explain the following java code including its output [5 Marks]switch (day){case 1:System.out.println (“sunday ” );break;case 2:System.out.println (“Tuesday ” );break;case 3:System.out.println (“Wednesday ” );break;default : System.out.println (“unknown ” );break;}
Solution
The given code is written in Java. It uses a switch statement to check the value of the variable "day" and prints a corresponding message based on its value.
Here is a step-by-step explanation of the code:
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The code starts with the switch statement, which takes the variable "day" as its expression.
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Inside the switch statement, there are multiple cases defined using the "case" keyword. Each case represents a possible value of the variable "day".
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The first case is "case 1:". If the value of "day" is 1, the code inside this case will be executed. In this case, it prints "sunday" using the System.out.println() method and then breaks out of the switch statement using the "break" keyword.
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The second case is "case 2:". If the value of "day" is 2, the code inside this case will be executed. It prints "Tuesday" and breaks out of the switch statement.
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The third case is "case 3:". If the value of "day" is 3, the code inside this case will be executed. It prints "Wednesday" and breaks out of the switch statement.
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If none of the above cases match the value of "day", the code inside the "default" case will be executed. In this case, it prints "unknown" and breaks out of the switch statement.
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After the switch statement, the code execution continues with the next line.
The output of this code depends on the value of the variable "day" when the code is executed. If the value of "day" is 1, it will print "sunday". If the value is 2, it will print "Tuesday". If the value is 3, it will print "Wednesday". For any other value, it will print "unknown".
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