Inter-thread Communication in Java

Numbers in Java (With 0 Prefix and with Strings)

Last Updated : 30 May, 2018

Consider the following Java program.

import java.io.*; 
class GFG 
{ 
    public static void main (String[] args) 
    { 
        int x = 012; 
        System.out.print(x); 
    } 
} 

Output:

The reason for above output is, when a 0 is prefixed the value is considered octal, since 12 in octal is 10 in decimal, the result is 10. Similarly, if i = 0112, result will be 74 (in decimal). This behavior is same as C/C++ (see this).

Also,

import java.io.*; 
class GFG 
{ 
    public static void main (String[] args) 
    { 
        String s = 3 + 2 + "hello" + 6 + 4; 
        System.out.print(s); 
    } 
} 

Output :

5hello64

Java takes the numbers before the strings are introduced as int and once the string literals are introduced, all the following numbers are considered as strings.

Inter-thread Communication in Java

H

Hiresh Trivedi

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