I was wondering if someone can show me how to use the format method for Java Strings. For instance If I want the width of all my output to be the same For instance, Suppose I always want my output... More on stackoverflow.com

I'm trying to make a formatted output in Java but I'm having some trouble... I write for example: System.out.format ("%d", 5); but Eclipse underlines the word "format" and there is a marker at thi... More on stackoverflow.com

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In many cases, it's just easier than concatenation. It's also less efficient, so that's not a great reason to use it, but... It's very simply the best way to ensure that you are displaying the data in the right format. Need to display your floats/doubles with exactly three decimal places? %.3f is quite a bit easier and less process-intensive than jerry rigging a solution that requires rounding, dividing down, searching for and dropping final zeroes, etc. More on reddit.com