package arraylisttesting;
import java.util.ArrayList;
import java.util.Arrays;
public class DoesItemExist {
public static ArrayList<ArrayList<String>> temp = new ArrayList<ArrayList<String>>();
public static boolean checkExist(String num){
for(ArrayList<String> a : temp){
if(a.get(0).equals(num)){
return true;
}
}
return false;
}
public static void main(String[] args) {
ArrayList<String> al = new ArrayList<>(
Arrays.asList(
"5", "a", "b", "c"
)
);
temp.add(al);
ArrayList<String> al2 = new ArrayList<>(
Arrays.asList(
"6", "z", "y", "x"
)
);
temp.add(al2);
System.out.println(temp);
System.out.println();
if(checkExist("3")) System.out.println("3 exist.");
if(checkExist("5"))System.out.println("5 exist.");
}
}
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