英文名:Introduction to Java Programming and Data Structures, Comprehensive Version, 11th Edition
中文版封面
1.1
publicclassbook{publicstaticvoidmain(String[] args){
System.out.println("Welcome to java");
System.out.println("Welcome to computer science");
System.out.println("Programming is fun");}}
1.2
publicclassbook{publicstaticvoidmain(String[] args){for(int i=0; i<5; i++)
System.out.println("Welcome to java");}}
1.3
publicclassbook{publicstaticvoidmain(String[] args){
System.out.printf(" J A V V A%n"+" J A A V V A A%n"+"J J AAAAA V V AAAAA%n"+" JJ A A V A A%n");}}
publicclassbook{publicstaticvoidmain(String[] args){double signal =1.0;double sum =0.0;for(int i=1;i<7;i++){
sum+=signal*1.0/(2*i-1);
signal*=-1.0;}
System.out.println(4.0*sum);
sum =0.0;for(int i=1;i<8;i++){
sum+=signal*1.0/(2*i-1);
signal*=-1.0;}
System.out.println(4.0*sum);}}
1.8
publicclassbook{publicstaticvoidmain(String[] args){double pi =3.141592654;//1145141919810
System.out.println("The circumference is "+2.0*pi*5.5+", and the square is "+pi*5.5*5.5+".");}}
1.9
publicclassbook{publicstaticvoidmain(String[] args){double width =4.5;double height =7.9;
System.out.println("The square is "+width*height+", and the circumference is "+2*(width+height)+".");}}
1.10
publicclassbook{publicstaticvoidmain(String[] args){
System.out.println("The average speed is "+(14.0/1.6)/(45.0/60.0+30.0/3600.0)+" miles per hour.");}}
1.11
publicclassbook{publicstaticvoidmain(String[] args){double base =312032486;int secnum =365*24*3600;for(int i=1;i<6;i++){
base=base+secnum/7.0-secnum/13.0+secnum/45.0;
System.out.println("The population in year "+i+" is "+(int)base);}}}
1.12
publicclassbook{publicstaticvoidmain(String[] args){
System.out.println("The average speed is "+24*1.6/(1+40/60.0+35.0/3500)+" kilometers per hour.");}}
1.13
publicclassbook{publicstaticvoidmain(String[] args){double a=3.4,b=50.2,e=44.5;double c=2.1,d=0.55,f=5.9;
System.out.println("x is "+(e*d-b*f)/(a*d-b*c)+", and y is "+(a*f-e*c)/(a*d-b*c)+".");}}