JAVA

check if list includes value java

The contains() method can be used to check if 
a Java ArrayList contains a given item or not

if (lista.contains(conta1)) {
    System.out.println("Account found");
} else {
    System.out.println("Account not found");
}

check if a list contains a string java

String search = "A";
for(String str: myList) {
    if(str.trim().contains(search))
       return true;
}
return false;