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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Demonstrate pre/ post increment operators better","articleBody":"The second code snippet from the Unary section does not illustrate the core difference between the pre and post increment operators well (++i vs i++):\nhttps://dev.java/learn/language-basics/using-operators/#unary\n\nBoth \n`System.out.println(++i);`\nand\n`System.out.println(i++);`\nproduce the same output so it might be confusing as to what is the actual difference.\n\n\nI would suggest replacing it with something along the lines of\n```\nint i = 3;\n\ni++;\n// prints \"i = 4\"\nSystem.out.println(\"i = \" + i);\n\n++i;\n// prints \"i = 5\"\nSystem.out.println(\"i = \" + i);\n\nint j = ++i;\n// prints \"i = 6\"\nSystem.out.println(\"i = \" + i);\n// prints \"j = 6\"\nSystem.out.println(\"j = \" + j);\n\nint k = i++;\n// prints \"i = 7\"\nSystem.out.println(\"i = \" + i);\n// prints \"k = 6\"\nSystem.out.println(\"k = \" + k);\n```\n\n","author":{"url":"https://github.com/Locust1","@type":"Person","name":"Locust1"},"datePublished":"2025-04-05T19:09:39.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/149/devjava-content/issues/149"}