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1、Java程序设计编程实例初步学习publicclassAccumulator{publicintadd(inta,intb){returna+b;}publicintsub(inta,intb){returna-b;publicintmul(inta,intb){returna*b;}publicintdiv(inta,intb){returna/b;}publicintmod(inta,intb){returna%b;}publicintzhi(inta,intb){returna^b;}publicstaticvoidmain(S
2、tringargs[]){Accumulatoracc=newAccumulator();inta,s,m,d,o,z;a=acc.add(9,5);s=acc.sub(9,5);m=acc.mul(9,5);d=acc.div(9,5);o=acc.mod(9,5);z=acc.zhi(2,5);System.out.println(a+""+s+""+m+""+d+""+o+""+z);}}importjava.applet.*;importjava.awt.*;publicclassBoyextendsApplet{public
3、voidpaint(Graphicsg){g.setColor(Color.red);g.drawString("我自横刀向天笑",10,30);g.setColor(Color.blue);g.drawString("笑完我就去睡觉",10,50);}}publicclassCompareExample{publicstaticvoidmain(Stringargs[]){inta=9,b=5,c=7,t;if(a>b){t=a;a=b;b=t;}if(a>c){t=a;a=c;c=t;}if(b>c){t=b;b=c;c=t;}S
4、ystem.out.println("a="+a+",b="+b+",c="+c);}}publicclassE2{publicstaticvoidmain(Stringargs[]){long[]a={1,2,3,4};long[]b={100,200,300,400,500};b=a;System.out.println("数组b的长度:"+b.length);System.out.println("b[0]="+b[0]);}}publicclassE3{publicstaticvoidmain(Stringargs[]){fo
5、r(inti=20302;i<=20322;i++){System.out.println((char)i);}}}publicclassEwz{publicstaticvoidmain(Stringargs[]){intc=2200;longd=8000;floatf;doubleg=123456789.123456789;c=(int)d;f=(float)g;System.out.print("c="+c);System.out.println("d="+d);System.out.println("f="+f);System.
6、out.println("g="+g);}}publicclassEx1{publicstaticvoidmain(Stringargs[]){inta[]={100,200,300};intb[]={10,11,12,13,14,15,16};b=a;b[0]=123456;System.out.println("数组a:"+a[0]+","+a[1]+","+a[2]);System.out.println("数组b:"+b[0]+","+b[1]+","+b[2]);System.out.println("数组b的长度:"+b.
7、length);}}publicclassExample{publicstaticvoidmain(Stringargs[]){charcW='你',jW='す';intp1=36328,p2=38358;System.out.println("汉字'你'在unicode表中的顺序位置:"+(char)cW);System.out.println("日语'す'在unicode表中的顺序位置:"+(char)jW);System.out.println("unicode表中第"+p1+"位置上的字符是:"+(char)p1);Syste
8、m.out.println("unicode表中第"+p2+"位置上的字符是:"+(char)p2);}}publicclassTest{publicintadd(inta,intb){returna+b;}public
