WorksForMe

$ javac -version
javac 1.6.0_51

$ cat Break.java
public class Break {
public static void main(String args[]) {
    int [] numbers={10,20,30,40,50};
    for (int x:numbers){
        if (x==30){
            break;
        }
        System.out.print(x);
                    System.out.print("\n");
    }
}
}

$ ls
Break.java

$ javac Break.java

$ ls
Break.class Break.java