Java. if statement inside String as function argument

Question

Is there a way to include a simple if statement inside a Java String passed as argument to a function, like the following example

int TotalFiles = 3;
JOptionPane.showMessageDialog(frame, 
                     "Created " + TotalFiles + " file" + (if(TotalFiles>1){"s"}) + ".");

Answer 1

You can use a ternary (or conditional) operator :

"Created " + TotalFiles + " file" + (TotalFiles > 1 ? "s" : "") + "."

Side comment: non-constant variables in Java start in lower case, so totalFiles .

Answer 2

尝试： (totalFiles>0 ? "s" : "sometThingElse")

Answer 3

Use a ternary operator.

JOptionPane
    .showMessageDialog(
        frame, 
        "Created " + TotalFiles + " file" + (TotalFiles > 0 ? "s": "") + "."
);

I also recommend:

• Naming your variable in camelBack as opposed to CamelCase
• Learning about String formats for easier to read/maintain formatting

Answer 4

Yes, using Ternary operators.

JOptionPane.showMessageDialog(frame, "Created " + TotalFiles + " file" + (TotalFiles > 0 ? "s" : "") + ".");

Ternary takes an expression such as (TotalFiles > 0) , compares it, and if it is true returns the value after the ? , otherwise returns the value after :

This is equivilant to designing a private method that returns a string based on the expression:

private String isMultipleFiles( int totalFiles )
{
    if( totalFiles > 0 )
        return "s";
    else
        return "";
}