60 lines
1.6 KiB
Java
60 lines
1.6 KiB
Java
package com.baeldung.jsonjava;
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import java.util.HashMap;
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import java.util.Map;
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import org.json.JSONObject;
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public class JSONObjectDemo {
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public static void main(String[] args) {
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System.out.println("4.1. Creating JSONObject: ");
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jsonFromJSONObject();
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System.out.println("\n4.2. Creating JSONObject from Map: ");
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jsonFromMap();
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System.out.println("\n4.3. Creating JSONObject from JSON string: ");
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jsonFromJSONString();
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System.out.println("\n4.4. Creating JSONObject from Java Bean: ");
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jsonFromDemoBean();
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}
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public static void jsonFromJSONObject() {
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JSONObject jo = new JSONObject();
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jo.put("name", "jon doe");
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jo.put("age", "22");
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jo.put("city", "chicago");
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System.out.println(jo.toString());
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}
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public static void jsonFromMap() {
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Map<String, String> map = new HashMap<>();
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map.put("name", "jon doe");
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map.put("age", "22");
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map.put("city", "chicago");
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JSONObject jo = new JSONObject(map);
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System.out.println(jo.toString());
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}
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public static void jsonFromJSONString() {
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JSONObject jo = new JSONObject(
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"{\"city\":\"chicago\",\"name\":\"jon doe\",\"age\":\"22\"}"
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);
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System.out.println(jo.toString());
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}
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public static void jsonFromDemoBean() {
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DemoBean demo = new DemoBean();
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demo.setId(1);
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demo.setName("lorem ipsum");
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demo.setActive(true);
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JSONObject jo = new JSONObject(demo);
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System.out.println(jo);
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}
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}
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