Example usage for java.util Map put

Introduction

In this page you can find the example usage for java.util Map put.

Prototype

V put(K key, V value);

Source Link

Document

Associates the specified value with the specified key in this map (optional operation).

Usage

From source file:Main.java

public static void main(String[] a) {
    Map<String, String> map = new HashMap<String, String>();
    map.put("key1", "value1");
    map.put("key2", "value2");
    map.put("key3", "value3");

    System.out.println(map);/*  www  . ja v  a2s  .c om*/
}

From source file:Main.java

public static void main(String[] args) {
    Map<String, String> map = new HashMap<>();
    map.put("CSS", "style");
    map.put("HTML", "mark up");
    map.put("Oracle", "database");
    map.put("XML", "data");

    printDetails(map);//from w ww . jav  a 2s.co m
    map.clear();
    printDetails(map);
}

From source file:Main.java

public static void main(String[] a) {

    Map<String, String> map = new HashMap<String, String>();
    map.put("key1", "value1");
    map.put("key2", "value2");
    map.put("key3", "value3");

    System.out.println(map);/*from ww  w.j  av  a2  s .  c o m*/
}

From source file:Main.java

public static void main(String[] argv) {

    Map<Number, String> numMap = new HashMap<Number, String>();

    numMap.put(.5, "half");
    numMap.put(1, "first");
}

From source file:Main.java

public static void main(String[] a) {

    Map<String, String> map = new HashMap<String, String>();
    map.put("key1", "value1");
    map.put("key2", "value2");
    map.put("key3", "value3");

    System.out.println(map.get("key2"));
}

From source file:Main.java

public static void main(String[] a) {
    Map<String, String> map = new HashMap<String, String>();
    map.put("key1", "value1");
    map.put("key2", "value2");
    map.put("key3", "value3");
    map.clear();//from  ww w.jav  a 2 s.  c o m

    System.out.println(map.isEmpty());
}

From source file:Main.java

public static void main(String[] a) {
    Map<String, String> map = new HashMap<String, String>();
    map.put("key1", "value1");
    map.put("key2", "value2");
    map.put("key3", "value3");
    map.clear();//  www. ja  va 2s .c om

    System.out.println(map);
}

From source file:Main.java

public static void main(String[] a) {
    Map<String, String> map = new HashMap<String, String>();
    map.put("key1", "value1");
    map.put("key2", "value2");
    map.put("key3", "value3");

    System.out.println(map.containsKey("key1"));
    System.out.println(map.containsValue("value2"));
}

From source file:Main.java

public static void main(String[] a) {
    Map<String, String> map = new HashMap<String, String>();
    map.put("key1", "value1");
    map.put("key2", "value2");
    map.put("key3", "value3");
    map.clear();/*from   w w w.  j a v  a  2  s  .  c  o m*/

    System.out.println(map.hashCode());
}

From source file:Main.java

public static void main(String[] argv) throws Exception {

    Map<Integer, String> map = new HashMap<Integer, String>();

    map.put(1, "first");
    map.put(2, "second");
    // map.put(1, 2); <- Syntax error
}