Multiple Classes Core Java Program
//MultipleClasses.java
class A
{
}
class B
{
static void m1()
{
System.out.println("B m1()");
}
}
class C
{
static void m2()
{
System.out.println("C m2()");
}
public static void main(String[] args)
{
System.out.println("C main()");
}
}
class D
{
static void m3()
{
System.out.println("D m3()");
}
public static void main(String[] args)
{
System.out.println("D main()");
m3();
}
static void m4()
{
System.out.println("D m4()");
}
}
class E
{
static void m5()
{
System.out.println("E m5");
}
public static void main(String[] args)
{
System.out.println("E main");
m5();
//m1(); CE: cannot find symbol
B.m1();
C.m2();
D.m3();
D.m4();
}
}
/*
Compilation:
.\01basics>javac MultipleClasses.java
|_A.class
|_B.class
|_C.class
|_D.class
|_E.class
Execution:
.\01basics>java A
Exception in thread "main" java.lang.NoSuchMethodError: main
.\01basics>java B
Exception in thread "main" java.lang.NoSuchMethodError: main
.\01basics>java C
C main()
.\01basics>java D
D main()
D m3()
.\01basics>java E
E main()
E m5()
B m1()
C m2()
D m3()
D m4()
01 basics>javac F.java
javac: file not found: F.java
=>
\01basics>java F
Exception in thread "main" java.lang.NoClassDefFoundError: F
*/
