my java project

Author: mayiliang

.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jre1.8.0_131"/>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

.gitignore

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+/bin/

.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>javatest</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

.settings/org.eclipse.jdt.core.prefs

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+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.8

src/sorttest/Main.java

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+package sorttest;
+public class Main {
+	public static <E> void main(String[] args) {
+		for(int i=0;i<20;i++) {
+			String value="stu"+(int)(Math.random()*100);
+			Student s1=new Student();
+			s1.setId(value);
+			SortUtils.add(s1);
+			SortUtils.stusort();
+		}
+		for(int i=0;i<20;i++) {
+			String value="tea"+(int)(Math.random()*100);
+			Teacher s1=new Teacher();
+			s1.setId(value);
+			SortUtils.add(s1);
+			SortUtils.teasort();
+		}
+		System.out.println("student:");
+		for(int i=0;i<20;i++) {
+			System.out.print(SortUtils.stu.get(i).getId()+"  ");
+		}
+		System.out.println();
+		System.out.println("teacher:");
+		for(int i=0;i<20;i++) {
+			System.out.print(SortUtils.tea.get(i).getId()+"  ");
+		}
+		System.out.println();
+		
+		
+		
+		
+	}
+}

src/sorttest/SortUtils.java

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+package sorttest;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class SortUtils {
+		public static List<Student> stu=new ArrayList<Student>();
+		public static List<Teacher> tea=new ArrayList<Teacher>();
+ 		
+ 		public static <E> void add(E e) {
+ 			if(e.getClass()==Student.class) {
+ 				Student s1=(Student) e;
+ 				
+ 				stu.add(s1);
+ 				
+ 			}
+ 			else if(e.getClass()==Teacher.class) {
+ 				Teacher s1=(Teacher) e;
+ 				
+ 				
+ 				tea.add(s1);
+ 				
+ 			}
+ 			
+ 		}
+ 		public static void stusort() {
+ 			String value=stu.get(stu.size()-1).getId();
+ 			if(stu.size()==1) {
+ 				return;
+ 			}
+ 			if(stu.size()==2) {
+ 				if(stu.get(0).getId().compareTo(stu.get(1).getId())<0) {
+ 					String xt=stu.get(0).getId();
+ 					stu.get(0).setId(stu.get(1).getId());
+ 					stu.get(1).setId(xt);
+ 				}
+ 				return;
+ 			}
+ 			if(stu.get(0).getId().compareTo(value)<=0) {
+ 				for(int j=stu.size()-1;j>=0;j--) {
+					
+					if(j==0) {
+						
+						stu.get(j).setId(value);
+						
+					}
+					else {
+						stu.get(j).setId(stu.get(j-1).getId());
+					}
+				}
+ 				return;
+ 			}
+ 			for(int i=0;i<stu.size()-2;i++) {
+ 					
+					if(stu.get(i).getId().compareTo(value)>0 && stu.get(i+1).getId().compareTo(value)<0 ) {
+						
+						for(int j=stu.size()-1;j>=i+1;j--) {
+							
+							if(j==i+1) {
+								
+								stu.get(j).setId(value);
+								
+							}
+							else {
+								stu.get(j).setId(stu.get(j-1).getId());
+							}
+						}
+						break;
+					}
+					
+				}
+ 		}
+ 		public static void teasort() {
+ 			String value=tea.get(tea.size()-1).getId();
+ 			if(tea.size()==1) {
+ 				return;
+ 			}
+ 			if(tea.size()==2) {
+ 				if(tea.get(0).getId().compareTo(tea.get(1).getId())<0) {
+ 					String xt=tea.get(0).getId();
+ 					tea.get(0).setId(tea.get(1).getId());
+ 					tea.get(1).setId(xt);
+ 				}
+ 				return;
+ 			}
+ 			if(tea.get(0).getId().compareTo(value)<=0) {
+ 				for(int j=tea.size()-1;j>=0;j--) {
+					
+					if(j==0) {
+						
+						tea.get(j).setId(value);
+						
+					}
+					else {
+						tea.get(j).setId(tea.get(j-1).getId());
+					}
+				}
+ 				return;
+ 			}
+ 			for(int i=0;i<tea.size()-2;i++) {
+ 					
+					if(tea.get(i).getId().compareTo(value)>0 && tea.get(i+1).getId().compareTo(value)<0 ) {
+						
+						for(int j=tea.size()-1;j>=i+1;j--) {
+							
+							if(j==i+1) {
+								
+								tea.get(j).setId(value);
+								
+							}
+							else {
+								tea.get(j).setId(tea.get(j-1).getId());
+							}
+						}
+						break;
+					}
+					
+				}
+ 		}
+		
+}

src/sorttest/Student.java

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+package sorttest;
+
+public class Student {
+	private String id;
+
+	public String getId() {
+		return id;
+	}
+
+	public void setId(String id) {
+		this.id = id;
+	}
+
+	
+}

src/sorttest/Teacher.java

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+package sorttest;
+
+public class Teacher {
+	private String id;
+
+	public String getId() {
+		return id;
+	}
+
+	public void setId(String id) {
+		this.id = id;
+	}
+
+	
+}