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4、t+Ctrl+X:Shift+Ctrl+Y:Ctrl+1:Ctrl+M:Alt+Shift+S:SourceAlt+/:Ctrl+/:/Ctrl+D:Ctrl+:Ctrl+Shift+S:Java 20074231JavaGolsling1995523 Java199812 1.2 Java2 J2SE J2EE J2ME200412 1.5(5.0) Java JavaSE JavaEE JavaME2Java SE - JavaJava EE - Java ME - 31 - 2 - C+javac+55%3 - 4 - 4javajava.classJVM .java - .class
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10、new inta.length*2;System.arraycopy(a,0,b,0,a.length);a=b;static void print()for(int i=0;i - 2(a)0 |(b) |(c) |(d) |(e) |V6javaoverload* *public void m(byte a,short b)System.out.println(m(byte,short);public void m(short a,byte b)System.out.println(m(short,byte);2bytem()71238Java123Student s /Students = new Student(); /Student,Students.age sage9static void method3(Student s)s=new Student(); /s.age=20; /Student stu=new Student();System.out.println(stu.age); / Studentagemethod3(stu); /method3s
