java - Why is my for only working on the first variable? -


the code wrote works fine if type in cosc 1337 once type of other elements in array display error message instead of time , date

what doing wrong?

import java.util.scanner;  public class schedule {     public static void main(string[] args) {         string[][] arr = new string[4][2];         arr[0][0] = "cosc 1337";         arr[1][0] = "hist 1301";         arr[2][0] = "math 1302";         arr[3][0] = "phil 1320";         arr[0][1] = "wednesdays 12pm-3pm";         arr[1][1] = "fridays 8am-11am";         arr[2][1] = "mondays 6pm-9pm";         arr[3][1] = "saturdays 10am-1pm";          scanner in = new scanner(system.in);         system.out.println("enter course");         string userinput = in.nextline();         (int = 0; < 4; i++) {             if (userinput.equalsignorecase(arr[i][0])) {                 system.out.println("classes on: " + arr[i][1]);                 return;             }             if (!userinput.equalsignorecase(arr[i][0])) {                 system.out.println("invalid course");                 return;             }         }      }  }

you never more first iteration in loop. invalid course statement should outside for-loop , called if 4 course checks fail


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