java what is a labelled break and continue statement

break, continue without label, can only jump out or continue the current loop, according to an example, I will give you
Lable1: for(int i = 0; i < 5; i++){
    label2: for(int j = 0; j < 33; j++ ){
       if(j == 3){
           break;//Jump out of the j loop and continue the i loop
           break Lable1://call out the i loop, all loops end
           break lable2://jump out of the j loop, continue the i loop
           continue;// Continue the j loop
           continue Lable1://jump to the i loop and start the next loop
           continue lable2://continue the j loop        }   } }