a very basic doubt in java

[katrina]

Can i put a condition saying that "if a variable carries a srting content" like this way(im a very beginner to java )

if(couple!=null )
{
do this.....
}

(couple is my variable)

[JosAH]

Can i put a condition saying that "if a variable carries a srting content" like this way(im a very beginner to java )

if(couple!=null )
{
do this.....
}

(couple is my variable)

Sure you can; if 'couple' is a non-primitive variable you can surely do that; in fact
it's quite normal idiom.

kind regards,

Jos

[r035198x]

Can i put a condition saying that "if a variable carries a srting content" like this way(im a very beginner to java )

if(couple!=null )
{
do this.....
}

(couple is my variable)

Do not post questions in the articles section.
Why don't you try it on the compiler and see what happens? The best way to learn these things is to read the appropriate tutorial and to try as much code on the compiler as possible.