定義一個類,能夠完成兩個功能:1、加法:1+2+5+72、減法:10-3-2-1-5
阿新 • • 發佈:2022-05-25
package com.iit.ooadhomework1;
//版本一
public class MyMath1 { public static int add(int a,int... b){ int sum = a; for(int i=0;i<b.length;i++){ sum += b[i]; } return sum; } public static int sub(int a,int... b){ int sum = a; for(int i=0;i<b.length;i++){ sum-= b[i]; } return sum; } }
package com.iit.ooadhomework1; /* 1、加法:1+2+5+7 2、減法:10-3-2-1-5 */ public class Start1 { public static void main(String[] args) { //版本一 int result1 = MyMath1.add(1,2,5,7); int result2 = MyMath1.sub(10,3,2,1,5); System.out.println("加法求和的結果是"+result1); System.out.println("減法求差的結果是"+result2); } }
package com.iit.ooadhomework2; //版本二 public class MyMath2 { private int num1; private int[] num2; public MyMath2(){} public MyMath2(int num1,int... num2){ this.num1 = num1; this.num2 = num2; }public int add(){ int sum = num1; for(int i=0;i<num2.length;i++){ sum += num2[i]; } return sum; } public int sub(){ int sum = num1; for(int i=0;i<num2.length;i++){ sum -= num2[i]; } return sum; } }
package com.iit.ooadhomework2; public class Start2 { public static void main(String[] args) { //版本二 MyMath2 myMath1 = new MyMath2(1,2,5,7); int result3 = myMath1.add(); MyMath2 myMath2 = new MyMath2(10,3,2,1,5); int result4 = myMath2.sub(); System.out.println("加法求和的結果是"+result3); System.out.println("減法求差的結果是"+result4); } }
package com.iit.ooadhomework3; //版本三 public interface IAdd { int add(int a,int...b); } interface ISub{ int sub(int a,int...b); }
package com.iit.ooadhomework3; public class MyMath3 implements IAdd, ISub { public MyMath3(){} @Override public int add(int a, int... b) { int sum = a; for(int i=0;i<b.length;i++){ sum += b[i]; } return sum; } @Override public int sub(int a, int... b) { int sum = a; for(int i=0;i<b.length;i++){ sum -= b[i]; } return sum; } }
package com.iit.ooadhomework3; public class Start3 { public static void main(String[] args) { //版本三 MyMath3 myMath3 = new MyMath3(); int result5 = myMath3.add(1,2,5,7); int result6 = myMath3.sub(10,3,2,1,5); System.out.println("加法求和的結果是"+result5); System.out.println("減法求差的結果是"+result6); } }
package com.iit.ooadhomework4; //版本四
public interface IAdd { int add(int a,int...b); } interface ISub{ int sub(int a,int...b); }
package com.iit.ooadhomework4; public class MyAdd implements IAdd { @Override public int add(int a, int... b) { int sum = a; for (int i = 0; i < b.length; i++) { sum += b[i]; } return sum; } }
package com.iit.ooadhomework4; public class MySub implements ISub { @Override public int sub(int a, int... b) { int sum = a; for (int i = 0; i < b.length; i++) { sum -= b[i]; } return sum; } }
package com.iit.ooadhomework4; public class MyMath4{ private IAdd addMember; private ISub subMember; public MyMath4(){} public MyMath4(IAdd addMember,ISub subMember){ this.addMember = addMember; this.subMember = subMember; } public int add(int a, int... b) { return this.addMember.add(a, b); } public int sub(int a, int... b) { return this.subMember.sub(a, b); } }
package com.iit.ooadhomework4; public class Start4 { public static void main(String[] args) { //版本四 MyAdd myAdd = new MyAdd(); MySub mySub = new MySub(); MyMath4 myMath4 = new MyMath4(myAdd,mySub); int result7 = myMath4.add(1,2,5,7); int result8 = myMath4.sub(10,3,2,1,5); System.out.println("加法求和的結果是"+result7); System.out.println("減法求差的結果是"+result8); } }
package com.iit.ooadhomework5; //版本五 public interface IAdd { int add(int a,int...b); } interface ISub{ int sub(int a,int...b); }
package com.iit.ooadhomework5; public class MyAdd implements IAdd { @Override public int add(int a, int... b) { int sum = a; for (int i = 0; i < b.length; i++) { sum += b[i]; } return sum; } }
package com.iit.ooadhomework5; public class MySub implements ISub { @Override public int sub(int a, int... b) { int sum = a; for (int i = 0; i < b.length; i++) { sum -= b[i]; } return sum; } }
package com.iit.ooadhomework5; public class MyMath5 implements IAdd,ISub { private IAdd addMember; private ISub subMember; public MyMath5(){} public MyMath5(IAdd addMember,ISub subMember){ this.addMember = addMember; this.subMember = subMember; } @Override public int add(int a, int... b) { return this.addMember.add(a, b); } @Override public int sub(int a, int... b) { return this.subMember.sub(a, b); } }
package com.iit.ooadhomework5; public class Start5 { public static void main(String[] args) { //版本五 MyAdd myAdd1 = new MyAdd(); MySub mySub1 = new MySub(); MyMath5 myMath5 = new MyMath5(myAdd1,mySub1); int result9 = myMath5.add(1,2,5,7); int result10 = myMath5.sub(10,3,2,1,5); System.out.println("加法求和的結果是"+result9); System.out.println("減法求差的結果是"+result10); } }