Which of the following is the correct way to parse a double value from a String variable named str in Java?

easy📝 Syntax Q3 of 15

Java - Command Line Arguments

Which of the following is the correct way to parse a double value from a String variable named str in Java?

Adouble val = Double.parseDouble(str);

Bdouble val = Integer.parseInt(str);

Cdouble val = Double.valueOf(str).intValue();

Ddouble val = Double.toString(str);

Step-by-Step Solution

Solution:

Step 1: Identify method to parse double from String
The correct method is Double.parseDouble(String s) which returns a primitive double.
Step 2: Eliminate incorrect options
Integer.parseInt returns int, not double; Double.valueOf(str).intValue() converts to int, losing decimal; Double.toString(str) is invalid as toString is not static and does not parse.
Final Answer:
double val = Double.parseDouble(str); -> Option A
Quick Check:
Use Double.parseDouble for double parsing [OK]

Quick Trick: Use Double.parseDouble() to parse double from String [OK]

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