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Java List Contains for Custom Object Type
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import java.util.ArrayList; | |
import java.util.Arrays; | |
import java.util.List; | |
/** | |
* Created by Vignesh on 26-05-2015. | |
*/ | |
public class ContainsTest { | |
public static void main(String[] args) { | |
List<Integer> srcIntegerList = new ArrayList<Integer>(Arrays.asList(1, 2, 3)); | |
int destInt = 4; | |
if (srcIntegerList.contains(destInt)) { | |
System.out.println("Available"); | |
} else { | |
System.out.println("Not Available"); | |
} | |
List<String> srcStringList = new ArrayList<String>(Arrays.asList("vignesh", "A", "Sathiyanantham")); | |
String destString = "vignesh"; | |
if (srcStringList.contains(destString)) { | |
System.out.println("Available"); | |
} else { | |
System.out.println("Not Available"); | |
} | |
MyClass myClass = new MyClass("Vignesh", 1); | |
MyClass myClass1 = new MyClass("asvignesh", 2); | |
List<MyClass> srcMyClassList = new ArrayList<MyClass>(Arrays.asList(myClass, myClass1)); | |
MyClass destMyClass = new MyClass("asvignesh", 2); | |
if (srcMyClassList.contains(destMyClass)) { | |
System.out.println("Available"); | |
} else { | |
System.out.println("Not Available"); | |
} | |
} | |
} |
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/** | |
* Created by Vignesh on 26-05-2015. | |
*/ | |
public class MyClass { | |
private int id; | |
private String name; | |
public MyClass(String name, int id) { | |
this.name = name; | |
this.id = id; | |
} | |
@Override | |
public boolean equals(Object myObj) { | |
boolean isEquals = false; | |
if (myObj != null && myObj instanceof MyClass) { | |
isEquals = this.name.equals(((MyClass) myObj).name); | |
} | |
return isEquals; | |
} | |
} |
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