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Java postfix and prefix incrementation

Mr Rookie Dev answered on September 13, 2021 Popularity 7/10 Helpfulness 2/10

answer Java postfix and prefix incrementation

Java postfix and prefix incrementation

Comment

class Operator {
    public static void main(String[] args) {
        int var1 = 5, var2 = 5;

        // 5 is displayed
        // Then, var1 is increased to 6.
        System.out.println(var1++);
        System.out.println(var1); // 6 is displayed


        // var2 is increased to 6
        // Then, var2 is displayed
        System.out.println(++var2);
    }
}

Popularity 7/10 Helpfulness 2/10 Language javascript

Source: www.programiz.com

Tags: java postfix prefix whatever

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Contributed on Feb 18 2023

Mr Rookie Dev

0 Answers Avg Quality 2/10

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postfix and prefix increment ++

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// This should work the same for any language with prefix and postfix increment and decrement.
// Just change the keywords to suit your language.
let array = [0, 1];

// INCREMENT ++
let index = 0;
let prefix_increment = array[++index];
// returns index + 1, array[1] = 1
console.log(prefix_increment); // 1

index = 0;
let postfix_increment = array[index++];
// returns index, then adds 1, array[0] = 0
console.log(postfix_increment); // 0
console.log(index); // 1

// DECREMENT --
index = 1;
let prefix_decrement = array[--index];
// returns index - 1, array[0] = 0
console.log(prefix_decrement); // 0

index = 1;
let postfix_decrement = array[index--];
// returns index, then subtracts 1, array[1] = 1
console.log(postfix_decrement); // 1
console.log(index); // 0

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: decrement decr

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Contributed on Dec 22 2023

tomsterBG

0 Answers Avg Quality 2/10

postfix and prefix increment

Comment

var x = 1;
x = ++x + x++ * x

Popularity 10/10 Helpfulness 1/10 Language whatever

Source: stackoverflow.com

Tags: increment incr

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Contributed on Sep 13 2021

Puzzled Piranha

0 Answers Avg Quality 2/10

prefix vs postfix increment java

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++x           : x is now 2
++x +         : 2 + 
++x + x       : 2 + 2
++x + x++     : 2 + 2 and x is now 3
++x + x++ *   : 2 + 2 *
++x + x++ * x : 2 + 2 * 3

Popularity 8/10 Helpfulness 1/10 Language java

Source: stackoverflow.com

Tags: increment incr

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Contributed on Feb 16 2022

Yellowed Yak

0 Answers Avg Quality 2/10

postfix and prefix increment

Comment

-2

++x = x is now 2
x++ = x is now 3 but the showed value remains 2
x = is 3

x = 2 + (2 * 3)
x = 8

Popularity 10/10 Helpfulness 1/10 Language whatever

Source: stackoverflow.com

Tags: increment incr

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Contributed on Sep 13 2021

Puzzled Piranha

0 Answers Avg Quality 2/10

Java postfix and prefix incrementation

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