Question

How to use string format in Java

Answer 1

public class MyClass {
    public static void main(String args[]) {
        String s = String.format("A: %1$d B: %2$d C: %3$d", 2345, 3, 775);
        
        System.out.println(s);
    }
}



/*
run:

A: 2345 B: 3 C: 775

*/

 

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Answer 2

public class MyClass {
    public static void main(String args[]) {
        double pi = 3.14159265359;

        String s = String.format("pi: %1$.4f", pi);
        
        System.out.println(s);
    }
}




/*
run:

pi: 3.1416

*/

 

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Answer 3

public class MyClass {
    public static void main(String args[]) {
        String s1 = "Java";
        String s2 = "C++";

        String s = String.format("%s %s", s1, s2);
        
        System.out.println(s);
    }
}




/*
run:

Java C++

*/

 

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