Java - Class - Basic
Two Classes in separate files
|
MyPrint.java |
PrintUtility.java |
|
public class MyPrint {
public static void main(String[] args) {
PrintUtility prt = new PrintUtility(); prt.printString("Hello World"); }
} |
public class PrintUtility {
public void printString(String s) { System.out.println(s); }
} |
Two Classes in single file
|
MyPrint.java |
|
class PrintUtility {
public void printString(String s) { System.out.println(s); }
}
public class MyPrint {
public static void main(String[] args) {
PrintUtility prt = new PrintUtility(); prt.printString("Hello World"); }
} |
Class Structure
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ClassTest.java |
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class ClassTemplate {
private int m_Variable = 0;
ClassTemplate() { System.out.println("ClassTemplate()"); };
public void setVariable(int v) { m_Variable = v; };
public int getVariable() { return m_Variable; };
public String toString() { return "Class : ClassTemplate"; }
}
public class ClassTest {
public static void main(String[] args) {
ClassTemplate ct = new ClassTemplate();
System.out.println(ct.getVariable());
ct.setVariable(10);
System.out.println(ct.getVariable()); System.out.println(ct.toString()); }
} |
C:\temp>java ClassTest
ClassTemplate()
0
10
Class : ClassTemplate