《Java语言程序设计（基础篇）》（第10版 梁勇 著）
第一章 练习题答案
1.1
public class Exercise01_01 {
public static void main(String[] args) { System.out.println(\);
System.out.println(\); System.out.println(\); } }
1.1附加
public class Exercise01_01Extra {
public static void main(String[] args) { System.out.println(4 * 4 - 4 * 3 * 5); } } 1.2
public class Exercise01_02 {
public static void main(String[] args) { System.out.println(\); System.out.println(\); System.out.println(\); System.out.println(\); System.out.println(\); } }
1.3
public class Exercise01_03 {
public static void main(String[] args) {
System.out.println(\ System.out.println(\ System.out.println(\ System.out.println(\); ); ); );
} }
1.4
public class Exercise01_04 {
public static void main(String[] args) {
System.out.println(\ a^2 a^3\); System.out.println(\ 1 1\); System.out.println(\ 4 8\); System.out.println(\ 9 27\; System.out.println(\ 16 64\); } } 1.5
public class Exercise01_05 {
public static void main(String[] args) {
System.out.println((9.5 * 4.5 - 2.5 * 3) / (45.5 - 3.5)); } } 1.6
public class Exercise01_06 {
public static void main(String[] args) {
System.out.println(1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9); } } 1.7
public class Exercise01_07 {
public static void main(String[] args) {
System.out.println(4 * (1 - 1.0 / 3 + 1.0 / 5 - 1.0 / 7 + 1.0 / 9 - 1.0 / 11 + 1.0 / 13)); } } 1.8
public class Exercise01_08 {
public static void main(String[] args) { // Display area
System.out.println(5.5 * 5.5 * 3.14159);
// Display perimeter
System.out.println(2 * 5.5 * 3.14159); } } 1.9
public class Exercise01_09 {
public static void main(String[] args) { // Display area
System.out.println(4.5 * 7.9);
// Display perimeter
System.out.println(2 * (4.5 + 7.9)); } } 1.10
public class Exercise01_10 {
public static void main(String[] args) {
System.out.println((14 / 45.5) * 60 / 1.6); } } 1.11
public class Exercise01_11 {
public static void main(String[] args) {
System.out.println(312032486 + 365 * 24 * 60 * 60 / 7.0 - 365 * 24 * 60 * 60 / 13.0 + 365 * 24 * 60 * 60 / 45.0);
System.out.println(312032486 + 2 * 365 * 24 * 60 * 60 / 7.0 - 2 * 365 * 24 * 60 * 60 / 13.0 + 2 * 365 * 24 * 60 * 60 / 45.0);
System.out.println(312032486 + 3 * 365 * 24 * 60 * 60 / 7.0 - 3 * 365 * 24 * 60 * 60 / 13.0 + 3 * 365 * 24 * 60 * 60 / 45.0);
System.out.println(312032486 + 4 * 365 * 24 * 60 * 60 / 7.0 - 4 * 365 * 24 * 60 * 60 / 13.0 + 4 * 365 * 24 * 60 * 60 / 45.0);
System.out.println(312032486 + 5 * 365 * 24 * 60 * 60 / 7.0 - 5 * 365 * 24 * 60 * 60 / 13.0 + 5 * 365 * 24 * 60 * 60 / 45.0); } }
1.12
public class Exercise01_12 {
public static void main(String[] args) {
System.out.println(24 / (1 + (40 + 35.0 / 60) / 60) * 1.6); } } 1.13
public class Exercise01_13 {
public static void main(String[] args) { System.out.println(\);
System.out.println((44.5 * 0.55 - 50.2 * 5.9) / (3.4 * 0.55 - 50.2 * 2.1));
System.out.println(\);
System.out.println((3.4 * 5.9 - 44.5 * 2.1) / (3.4 * 0.55 - 50.2 * 2.1)); } }
《Java语言程序设计(基础篇)》(第10版 梁勇 著)第一章练习题答案
