Which of the following 2 methods executes faster ?class Trial { String _member; void method1() { for(int i=0;i<2048;i++) { _member += "test"; } } void method2() { String temp; for(int i=0;i<2048;i++) { temp += "test"; } _member = temp; } } (a) method1() (b) method2() (c) Both method1() and method2() takes same time for execution

(b)

Accessing method variables requires less overhead than accessing class variables.

Interview Candidate
Jun 19th, 2005
2
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Showing Answers 1 - 2 of 2 Answers

Amit

Apr 27th, 2005

a

chandra

Jun 19th, 2005

a

Time taken for method1() is 1375
Time taken for method2()is 1406

public static void main(String arg[])
{
Class_Method_Variable cmv=new Class_Method_Variable();
Date d=new Date();
long t1=d.getTime();
cmv.method1();
Date d1=new Date();
long t2=d1.getTime();
long time=t2-t1;

System.out.println("Time taken for method1() is "+time);
Date d3=new Date();
t1=d3.getTime();
cmv.method2();
Date d4=new Date();
t2=d4.getTime();
time=t2-t1;
System.out.println("Time taken for method2()is "+time);

}