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Explanatory Question

(x) Give the output of the following program segment and specify how many times the loop is executed.


String s = "JAVA";

for(i=0; i<s.length(); i+=2)
    System.out.println(s.substring(i));

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📘 Detailed Answer

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Answer with Explanation

Understanding the Code

The given Java program prints substrings of the string "JAVA" based on the loop conditions.


String s = "JAVA";
for(i=0; i<s.length(); i+=2)
    System.out.println(s.substring(i));

Step-by-Step Execution

Initialization: i = 0
Loop Condition: i < s.length(), i.e., i < 4 (since "JAVA" has 4 characters).
Increment: i += 2 (i.e., i increases by 2 in each iteration).
Printing: System.out.println(s.substring(i)) prints the substring starting from index i.

Iteration Breakdown

First Iteration (i = 0): s.substring(0) → "JAVA"
Second Iteration (i = 2): s.substring(2) → "VA"
Loop Stops (i = 4 is out of bounds)

Final Output


JAVA
VA

Number of Loop Executions

The loop runs 2 times (i = 0 and i = 2).

Final Answer

Output:


JAVA
VA

Number of times loop executes: 2

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(x) Give the output of the following program segment and specify how many times the loop is executed. String s = "JAVA"; for(i=0; i<s.length(); i+=2) System.out.println(s.substring(i));