Java Program on Map Interface Methods
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Program 1
package dataflair; import java.util.*; public class TestMap1 { public static void main(String[] args) { Map<Integer,String> M=new HashMap<Integer,String>(); System.out.println(M.size()); M.put(1, "Limca"); M.put(3, "Water"); M.put(5, "Frooti"); M.put(2, "Limca"); M.put(7, "Frooti"); M.put(4, "Limca"); M.put(6, "Water One Plus"); System.out.println(M); // System.out.println(M.size()); // Map<Integer,String> M1=new HashMap<Integer,String>(); //M1.putAll(M); // System.out.println("Before Replace" + M); // M.replace(3,"Water","ABCDE"); // System.out.println("After Replace" + M); // System.out.println("Before Remove" + M); // System.out.println(M.remove(3)); // System.out.println("After Remove" + M); // System.out.println("Before Remove" + M); // M.remove(2, "Water"); // System.out.println("After Remove" + M); //System.out.println(M.isEmpty()); //M.clear(); // if(M.containsValue("ABCDE")) // System.out.println("Searching success"); // else // System.out.println("Searching not success"); // if(M.containsKey(39)) // System.out.println("Searching success"); // else // System.out.println("Searching not success"); //System.out.println(M.get(6)); } }
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